AR15 Rifle Deals, AR15 Rifle Parts, AR Rifle Kits, AR15 Lowers and Upper Receivers

(10,990 deals total)

Description

The Anderson Manufacturing AM-15 Utility 5.56 Complete Upper Receiver Group is built from the factory ready to be installed on your lower receiver. This complete AR-15 upper features a 16" barrel made from 4150 Chrome Moly Vanadium steel with a durable Nitride finish and a carbine length gas system with a 1:8 twist rate. The upper receiver is forged from 7075-T6 aluminum and hardcoat anodized black. The 15" free float handguard features M-LOK slots and an interrupted picatinny top rail to save weight.

Add the Colt legend of reliability to your rifle or build with these complete feature 1/7 RH twist in a chrome lined, button rifled barrel. Available with or without a charging handle, bolt carrier group, and back up sights. All NFA rules apply. NOTE: Does NOT include bolt carrier group, charging handle, or rear backup sight AR-15, Issue:11, Page:003 Big Book Catalog, Issue:72, Page:003 160-000-446WB

SKU 516551628666 Brand Beretta Model Number JPMXSTG30 UPC 082442976525 DETAILS Brand: Beretta USA Model: PMXs Caliber: 9mm Luger Capacity: 30+1 Action: Semi-Auto OAL: 16.40" Hand: Ambidextrous Sights: Optic Ready Muzzle: Threaded Magazine Type: OEM Grips: Black & Gray Tiger Stripe Handguards: Picatinny Includes: 2 Magazines Safety: Ambidextrous Thread Pattern: 1 / 2"-28 tpi Barrel Description: Steel Threaded Barrel Length: 6.90" Max Capacity: 30 Receiver Finish: Black & Gray Tiger Stripe Weight: 5.50 lbs FEATURES

MOD4SA semi-auto AR15 forged lower receiver with internal parts and stock. Lower is mil spec and uses standard take-down and fire control pins. Receiver is mil-spec hard coat anodized aircraft grade 7075 T6 aluminum and is Teflon coated for added durability and color consistency. Internals are semi-auto mil-spec. Receivers are RDIAS/RLL compatible.

•T7075-T6 Aerospace Aluminum • Milled Magazine Well •Type III (3) Hard Anodized •Pistol Grip threading •Bolt Catch plunger hole •Take down detent hole (both) •Buffer retainer hole •Buttstock threading •Magazine catch spring and catch button •Safety selector detent hole

CBC/Hera Arms .223/5.56×45 Upper Assembly will fit onto any standard AR-15 lower receiver. Our CBC upper receiver group, is assembled from premium components into a high performance-package. Information Upper Receiver: A3 Flat-Top, Forged 7075-T6 Aluminum Barrel Length: 16″ Barrel Contour: Socom Spiral Fluted Barrel Material: Stainless Steel Muzzle Thread Pattern: 1/2 x 28 Chrome Lined: No Barrel Finish: Stainless Steel Twist Rate: 1 in 9″ Chamber: 5.56×45 M4 Feed Ramps: Yes Muzzle Device: A2 Stainless Steel Gas System Length: Carbine Gas Block Diameter: 0.750″

CBC/Hera Arms 300 AAC Upper Assembly is chambered in 7.62×35 and will fit onto any standard AR-15 lower receiver. Our CBC upper receiver group, is assembled from premium components into a high performance-package. Upper Receiver: A3 Flat-Top, Forged 7075-T6 Aluminum Barrel Length: 16″ Barrel Contour: SOCOM Barrel Material: 4150 Chrome Moly Steel Muzzle Thread Pattern: ⅝ x 24 Chrome Lined: No Barrel Finish: Nitride Twist Rate: 1 in 8″ Chamber: 7.62×35 ,300 AAC M4 Feed Ramps: Yes Muzzle Device: A2 Gas System Length: Pistol Gas Block Diameter: 0.750″

TR Enabling - Billet TRE-15 Stripped Lower Receiver. Looks nice. Even nicer is the price. This Receiver is the base of our TRE-15 Rifle platform. This item must be shipped to an FFL. You will be contacted upon ordering for a copy of the destination FFL. Please use the FFL's address as the shipping address if possible. Product Code: TRE15LRS

Magpul Industries Mag M3 223 Rem 556NATO 10Rd Black AR Rifles MAG559-BLK This item may take a few extra days to ship We Can NOT ship this product to these states: CT

Up for sale one TSS Custom A3 upper with a 16" melonite barrel. 7"-12" Free float quad rail. Twist 1:7, Comes with bolt carrier group and charging handle.

The shortest of the non-NFA models with a removable muzzle device, the PWS MK116 Upper is a crowd favorite. The MK116 is designed for a multitude of uses and retains lethal capability out to 500 meters with varying types of ammunition. The handguard features the VLTOR KeyMod System which comes standard with two 2 sections of 1913 rail as well as a continuous 1913 top rail.

KEYMOD UPPER SALE!!!! 16" M4 5.56/223 1:7 Twist 4140 CMV Phosphate Finish, 1/2 28 threaded with FH, YHM Gas System, Color Filled T-Marked Mil Spec Upper, 9" Free Float KEYMOD RAILS. Standard Charging Handle included, Bolt Carrier Sold Separately. Add a Phosphate BCG for $75 with purchase of Upper. Sku: 10164 Use PROMO Code- BCG75 at checkout for $25 OFF. Add M4 223/556 Bolt Carrier Group: http://www.nwcp-tactical.com/products/10167.html

BRB 300 Blackout 10.5" Pistol/SBR Upper Assembly (includes BCG & Charging Handle) Specifications Model: BRB30010PU7 Upper: Flat top m-4 upper w/ ext feed ramps, 7075-T6 aluminum, hard coat anodized black type III class II finish w/ laser etched t-markings Caliber: 300 Blackout Barrel: 10.5" 1/8 Twist, Chrome Moly Steel , M-4 feed ramps, Carbine Length Gas System, 5/8x24 threaded Flash Hider Option: A2 Bird Cage (standard). Specwar Flash Hider is optional. Front Site: Rail Height gas block w/ rail. Handguard: UTG Pro 7" Free Float Quad Rail Barrel Finish: Mag Phosphate

Manufactured By DC Machine LLC 16" Barrel .750 Shoulder 1:8 Twist M4 Feed Ramps 4140 Chrome Moly Gun Barrel Steel Black Nitride Finish Chambered in 300 AAC Blackout Carbine-length gas system Gas Port Drilled 0.099 5/8-24 Muzzle Threading

The TRM3 combines a single 3" Picatinny rail with two, 2-1/2" 45° Picatinny rails to provide simple light operation while using a vertical grip and light mount. Rails can be used independently of each other, do not interfere with iron sights and mount easily to standard upper or lower handguards. Constructed of durable, high-density polymer. Fits M-16, AR-15 and M4. Dimensions: 3"L x 2-3/4"W x 1-1/2"H. Weight: 3 oz. Color: Black. Will not interfere with iron sights Rails can be used independently of each other Mount easily to standard upper or lower handguards Item number#: IK-230674

DPMS Panther Shorty A2 Carbine, 5.56, 11.5" Barrel Item #: RFA2-PCAR-11 Lower Receiver: Forged 7075 T6 Caliber: 5.56 NATO Stock: Pardus, Com. Tube Weight: 6.9 lbs Fire Control: Standard Overall Length: 28.75"/ 31.75" Handguard: Glacier Guard Barrel: 11.5" Hbar, chromelined 4150 Chromemoly Pistol Grip: A2 Upper Receiver: Forged 7075 T6 Fixed A2 Front/Rear Sight: Mil-spec A2 Forged Fixed A2 carry handle Twist: 1x9 Flash Hider: A2 birdcage

Durable Magpul PMAGs with Mag Link coupler kits allow for fast reloads and always ready ammunition. Available PMAGs include MOE, M3, and M3 Maglevel. Polymer links securely fasten each magazine, ensuring there is no rattling or play. Specs SPECS: Reinforced hard polymer, matte black. Fits current-production 30-round PMAG and MagLevel PMAG. 100-015-738WB AR15/M16 MOE PMAGs + MAGLINK Cartridge: 204 Ruger, 223 Remington, 5.56 mm NATO, 300 AAC Blackout Action Type: Semi-Auto Capacity: 30-Round Finish: Black Quantity: 2 Made in the USA MAKE MODEL Make: AR-15/M4, M16

(Free Shipping on all Orders) Upper Assembly Forged 7075-T6 Flat Top Receiver with M4 Feed Ramps Laser etched T-marks and Anodized Finish Manganese Phosphated Chrome Moly Vanadium 300 Blackout Barrel 10.5” HBAR barrel with M4 Barrel Extension 1:8 Barrel Twist .750 Barrel Diameter at Gas Block Pistol Length Gas Nitrided low vis gas block (Secured firmly with Barrel Dimpling) 5/8-24 Muzzle Thread Pitch A2 Flash Hider Mil-spec BCG and Charging Handle (Select from drop-down menu above) (Phosphated Chrome-lined w/properly staked gas key) Quad Rail

The PWS MK107 Upper was developed specifically for CQB requirements and as a replacement option for the MP5 style weapons. The short compact design retains lethal capability out to 200 meters and has been proven highly effective in the military and law enforcement community. Designed from the ground up to be 7" barreled Upper, the PWS MK107 is a dream come true for those looking for the shortest possible package with reliability of a full size Upper.

30 Round Blocked to 10 rounds Stainless Steel Magazine Matte Black Scratch-Resistant Finish Anti-tilt Follower 17-7 Stainless Steel Wire Spring Blocking is ATF-approved Blocking cannot be removed; magazine is physically crimped to prevent loading more than the requested number of rounds Special order in stock! FREE SHIPPING! Item #: CPDBLOCKED Manufacturer: C Products Defense

Our new Reduced Friction Black Nitride BCG utilizes strategically located bearing surfaces to reduce carrier contact and friction. By adding in machined lubrication channels and surfaces in addition to the minimal bearing surfaces, reliability is increased immensely. A slight increase in weight also ensures proper dwell time and extraction. A case hardened 8620 steel carrier with an advanced low friction Black Nitride coating is the base for this BCG.

Some of the best aluminium magazines you can buy. I got some for use on duty in the USMC, since PMags aren't authorized anymore. Only paid $5 for S&H o n my order. "New 30 round capacity AR15/M16 magazines made by NHMTG in Hartford, CT. This version features a factory installed Magpul anti-tilt follower. Floorplates are marked: .223 cal/5.56 mm NHMTG S/42 HARTFORD, CT

Mfg#: MG-G4-BLK SKU#: 173390 Caliber: 5.56 x 45mm Finish: Black Lower Type: Stripped

KAK INDUSTRY COMPLETE BOLT CARRIER GROUP NITRIDE COATED KAK LOGO MPI TESTED AND MARKED 8620 STEEL CARRIER 9301 STEEL HEAD AUTO CARRIER FEATURES A NITRIDE COATING THROUGHOUT FULLY MACHINED GAS KEY AND EXTRACTOR - NO MIM PARTS USED FOR 5.56 NATO, 223 REMINGTON, 300 BLACKOUT OR SIMILAR INCLUDES O-RING EXTRACTOR HELPER TO RUN UNDER ALL CONDITIONS PRODUCED UNDER CONTRACT TO KAK SPECIFICATION

Remington R-15 VTR MOE Semiautomatic Rifle .223 Rem., 22", 1:9-twist barrel AAC Breakout compensator $899.99 Was $1,169.99 $270 OFF 03834200

BRB 5.56 10.5" Pistol/SBR Upper Assembly, Super Slim FF Rail Specifications Model: BRB55610SSFF9nb Upper: Flat top m-4 upper w/ ext feed ramps, 7075-T6 aluminum, hard coat anodized black type III class II finish w/ laser etched t-markings Caliber: 5.56 Barrel: 10.5" 1/7 Twist, Chrome Moly Steel , M-4 feed ramps, Pistol Length Gas System, 1/2x28 threaded Flash Hider Option: A2 Bird Cage (standard). Troy Medieval Flash Suppressor or Smith Enterprise Vortex Flash Hider are optional. Handguard: UTG Pro 9" Super Slim Free Float Quad Rail. (includes 3 2-slot rail sections)

This Bolt Carrier Group comes fully assembled by St. Croix Tactical for your AR15, M16, or M4. Nickel Boron 9310 Steel Bolt MPI Bolt (Magnetic Particle Inspected) Shot Peened Bolt Grade 8 Hardened Fasteners Key Staked per Mil-Spec Black Extractor Insert Crane O-Ring Free Shipping

$29.56 till they're gone Product Specifications Manufacturer: LaRue Model: R.A.T. Type: Stock Finish/Color: Flat Dark Earth Accessories: w/ Storage Compartment Fit: AR Rifles Manufacturer Part #: LT800-FDE MSRP: $115.00

Detail Information: Proudly Designed and Made in USA•15" Single Rail, Super Slim, Keymod Compatible, Free-floating Handguard with Proprietary Barrel Nut Design•112 Keymod Compatible Slots on 7 Keymod Compatible Slot Tracks for Mounting Keymod Compatible Rails and Accessories with the Most Flexibility in Diverse Applications•Fits Carbine Length, Mid-Length or Rifle Length AR15s•Super Lightweight with 37 Slot Extended Top Picatinny Rail to Form a Continuous Mounting Platform with the Receiver•Includes 2 Keymod Compatible Picatinny Rail Sections, 4 Slot and 8 Slot, for

ARD AMERICAN RIFLE COMPLETE UPPER 16 INCH .458 SO-COM LOG ON NOW TO AR15DEPOT.COM COMPLETE UPPER $895.00 FREE SHIPPING

$38.99 - AR15 Polymer 80% Lower Receiver - $38.99

The Spike's Tactical Pirate Lower is a special series lower featuring a Calico Jack logo instead of the usual ST Spider logo. The selector markings are marked Parley, Plunder and Arrr. Limited quantities availble * CNC Machined from a 7075 T6 MIL-H-6088 Forging * Low Shelf for RDIAS * Milled Manufacturer Engravings * Accepts .154" Diameter Trigger & Hammer Pins * MIL-A-8625F Type III Class 2 Hardcoat Anodized Finish inside and out Back in stock!

Wikiarms.com - Now Tracking AR15 and AR10 Parts - Lowers, Uppers, BCGs, Rifle Kits... AR15 Rifles AR-15 Lowers AR-15 Uppers AR-15 BCGs AR-15 Lower Parts Kits

Rock River Arms AR0114RRA Stripped Lower Receiver. No telephone orders please. Orders for RRA stripped lower receivers taken online only. Local customers, purchase online and select In-Store pickup for shipping method or visit our Houston retail store and purchase direct at our counter. SKU: AR0114RRA

.308 Upper Receiver Slick side receiver will not work with A3 style four rail free float tube. FOR GEN 1 RIFLES ONLY Part Number 308-UR-36

Model: BRB5567SSFF7 Upper: Flat top m-4 upper w/ ext feed ramps, 7075-T6 aluminum, hard coat anodized black type III class II finish w/ engraved t-markings Caliber: 5.56 Barrel: 7" 1/9 Twist, Chrome Moly Steel , M-4 feed ramps, Pistol Length Gas System, 1/2x28 threaded Flash Hider Option: A2 Bird Cage, Troy Medieval Flash Suppressor, or Smith Enterprise Vortex Flash Hider Front Site: Low profile gas block w/ rail. Handguard: UTG Pro 7" Super Slim Free Float Quad Rail. (includes 3 2-slot rail sections) Barrel Finish: Mag Phosphate Item Id: BRB5567SSFF7NL

The next-generation PMAG 30 M3 MagLevel is a 30-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M16 compatible weapons that features transparent windows to allow rapid visual identification of approximate number of rounds remaining. Along with expanded feature set and compatibility, the M3 MagLevel incorporates new material technology and manufacturing processes for enhanced strength, durability, and reliability to exceed rigorous military performance specifications.

Manufacturer: Windham Weaponry of Windham Maine Item: Windham CF1 AR-15 Item: Ultra-Lightweight and Strong Carbon Fiber Caliber: 5.56/223 For sale here is the Windham Weaponry R16M4FTT-CF1 .223 Rem. / 5.56mm NATO Rifle Semi-Automatic, Gas Impingement System AR-15 Style rifle. A team of the finest firearms manufacturers in the U.S.A. has been re-assembled to bring to market the highest quality AR type rifle possible.

Change your 30+ year old flash hider to a dynamic multi function unit with options. Take a look at the web page, there are three styles of flash hider to choose from. The GAT-TAC FHS provides a reduction is felt recoil and will diffuse the visible muzzle flash. Once installed, it is easy to remove this GAT-TAC flash hider with a simple tool, attach an oil filter for cleaning and then reattach the flash hider as quick as you can spin it on. Install the GAT-TAC adapter ONCE and you never have to disturb the barrel threads again.

Mega Arms GTR-3S Ambi Billet AR15 Lower Receiver Features: - Machined from billet 7075-T6 aluminum vs. the more commonly used 6061 for a 70% increase in strength. - Black Hard anodized with a surface hardness of 60 Rockwell. - 9.1oz - Includes hardware for the integrated ambidextrous bolt catch. - Integrated trigger guard for added functionality, and strength. - Lower features a nylon tipped upper tensioning screw. - Magwell features an enlarged bottom flare and inner chamfer for easier magazine insertion.

Save 10% on all Magpul Products at Mountsplus.com : Use Check Out Code: MAGPUL

ROCK ECH PRD AWB 16 223 Mfg. Item #: FE1001 Condition: Factory New ? Finish: Black Trigger: Two Stage Action: Semi-Automatic Caliber: 223 Remington/5.56 NATO Barrel Length: 16.0" Capacity: 20+1 Safety: Lever Stock: RRA Operator A2 Overall Length: 36" Weight: 7.6 lbs Product ID: DGO5800004716 Manufacturer: ROCK RIVER ARMS INC

Machined from billet 7075 T6 Aluminum Precision broached mag well Cerakoted in house Features larger beveled mag well for more positive magazine insertion. Integrated flared trigger guard for use with gloves. Larger contour around mag release for better efficiency. Compatible with either Mil-Spec or Commercial buffer tubes & stocks Various colors available: Barrett Bronze, Blue Titanium, Burnt Bronze, Flat Dark Earth, Olive Drab Green, Sky Blue, and Sniper Gray ETA2AC

Rifle Caliber Pistols - AR15 and AK47 Style Pistols .223Rem/5.56mm AR Style Handguns 7.62x39mm AK Style Handguns .308/7.62x51mm AR Style Handguns

Colt teamed up with Magpul Industries to outfit these carbines with the most highly sought after accessories. Colt's LE6920MP AR-15 rifle comes outfitted with ATACS-FG Camo pattern Magpul furniture. At the base of this AR platform rifle is Colt's popular 6920 law enforcement carbine, proven to be effectively mobile during tactical deployment and traditional patrol. It boasts proven advantages like a safe, semi-automatic rate of fire for potent firepower capability and speed of target acquisition.

The next best thing in the AR market is.......Titanium! Our Titanium Extended Takedown Pins make it so easy to break down your rifle, that you will wonder how you ever got by without them. They look fantastic too, and will fit on any AR-15 lower receiver. Featuring: Solid Billet Titanium Construction Precision CNC Machined Surfaces Includes both front and rear takedown pins Ergonomic design with comfortable, radiused edges Left-side extended pin tips aid in pin removal without obstructing manual of arms Right side extended/enlarged pin heads offer instantaneous, one-hand pin removal

10.5 300 AAC BLACKOUT, .125 GAS PORT, CARBINE GAS SYSTEM, 1:7 TWIST, PARKERIZED, 5/8-24 threads $5.95 shipping on all orders.

Colt teamed up with Magpul Industries to outfit these carbines with the most highly sought after accessories. Colt's LE6920MP AR-15 rifle comes outfitted with Kryptek Highlander Camo pattern Magpul furniture. At the base of this AR platform rifle is Colt's popular 6920 law enforcement carbine, proven to be effectively mobile during tactical deployment and traditional patrol. It boasts proven advantages like a safe, semi-automatic rate of fire for potent firepower capability and speed of target acquisition.

GEAR-15 7075 Stripped Lower Ever wanted to get a stripped lower with your choice of serial number? Now we can do that for you. Choose a custom serial number, up to 16 characters. The rule is that it MUST contain at least one number. Most people use a 1 for an I etc, so its quite easy to find a way to do that, just like vanity plates on a car. You can choose your lower to be finished in one of three Cerakote colors once done, Black, OD and Tan. Other custom colors are available but will cost extra, please call for availability.

With a crazy-fast reset, nearly nonexistent over-travel, and a smoother, crisper, lighter trigger pull, the RA-535 Advanced Performance Trigger (APT) helps you fire more quickly and accurately. The single-stage trigger group is easy to install. KNS pins included! KEY FEATURES KNS pins included Single-stage 3.5-lb. pull weight Quick reset for faster response time between shots Lightened trigger pull with super-crisp release to improve accuracy and increase target acquisition Combines straight trigger functionality and comfort with curved control

https://www.tandemkross.com/AR15-Magwell-and-Mag-Release-Combo_p_161.html Get your moneys worth with this great combo deal. Get two great products for one low price and save huge on shipping! This combo includes: -Qty 1: AR-15 "Rhino" Tactical Magwell Grip -Qty 1: AR-15 Oversized Combat Magazine Release AR-15 "Rhino" Tactical Magwell Grip: -Improves speed of inserting magazines without looking -Provides grip for CQB or malfunction operations -Ultralight and Super Strong polymer -Works on all Mil-Spec M16, M4 and AR-16 lowers without modification

The MIAD (MIssion ADaptable) GEN 1.1 Grip is a drop-in replacement for the standard AR15/AR10 grip, now available in dedicated 5.56x45 and 7.62x51 configurations. It is designed to improve ergonomics with interchangeable front and rear straps for personalized hand fit, an aggressive texture for positive weapon control, and is compatible with all Magpul Grip Cores to adapt to various storage needs. This update to the original MIAD has improved strap retention and also comes standard with the newest grip core; a lubrication bottle core.

Rock River Arms AR-15 Two Stage Lower Receiver Parts Kit AR0120NM. The AR0120NM by Rock River Arms features their Two Stage Trigger group which generally improves accuracy by lightening and smoothing out the trigger pull. The weight of pull on these are factory set and usually around 4 1/2 to 5 pounds. The two stage trigger takes out the "unknown" point of fire from the trigger stroke. This kit also includes a basic black A2 pistol grip and it will work with any standard AR-15 lower receiver. Rock River Arms 2 Stage Lower Parts Kit AR0120NM

20 Round SR-25 (.308 / 7.62 x 51) Stainless Steel -- Fits SR-25 or DPMS-style -- New Black T Teflon Coating; Exclusive to C Products Defense -- Matte Black Finish -- Black Follower -- 17-7 Stainless Steel Wire Spring -- 6.25 oz. -- 100% Manufacturer's Warranty -- Made in the USA by C Products Defense -- North River Distributors, LLC does not ship high capacity magazines to CA, CO, CT, Chicago IL, DC, MA, MD, NJ, and NY.

Manufactured by our finest domestic Mil-Spec contractors these are among the best 5.56 AR rifle bolts on the market and the same bolts we use as the basis of our renowned custom rifles! Our bolt is precision machined from Carpenter No. 158 steel, shot peened for increased strength and a includes a tool steel extractor and ejector, appropriate extractor spring, and is MPI (Magnetic Particle Inspected and randomly batch HPT (High Pressure Tested) . The extractor is 4140 gun quality, annealed, cold drawn steel per the Mil-Spec

When I first read the title of this video, “FN M249S Semi-Auto Version Release Video” I was sure it was just a late April Fool’s joke, and expected to see a SAW gunner clearing stoppage after stoppage after stoppage. However, during the 2015 NRA Show, FNH officially announced a semi-auto version of the M249 for civilian sale. This M249S version of the classic light machine gun fires 5.56 from the closed bolt, unlike the automatic version we are all used to which fires from the open bolt.

7.5" Stainless Steel Barrel 1:7 twist. m4 feedramps. 223 Wylde Chamber (shoots both 5.56 and 223) Dust cover, Forward Assist, A2 Flash Hider 7" Free Float Quad Rail Item #: 7.5upper

Upper receiver for ar15. 7075-T6 Aluminum receiver M4 Feed Ramps Dust Cover, Forward Assist 10" Free float quad rail. .223 Wylde chamber (shoots 5.56 or .223) 16" m4 barrel, 1:8 twist a2 flash hider Item #: 16upper10

These faceted carriers are plated by UTC (FAIL ZERO) using their EXO finish and they look super nice. Bolt Subassembly: ​Bolt: 9310 Alloy Steel, Shot Peened MPI Inspected Extractor: Shot Peened Hardened D2 tool steel extractor Black Extractor Insert O-Ring: Mil-Spec Gas rings (3): Milspec Coating: Nickel Boron Plated (UCT Coatings) Bolt Carrier: Heavy Duty M16 design 8620 steel, plated ​Gas key: hardened billet 4140 machined, plated Gas Key Screws,: Grade 8 properly staked (heavy strike). Screws on faceted model may or may not be plated. Nickel Boron Plated (UCT Coatings)

This Bolt Carrier Group comes fully assembled by St. Croix Tactical for your AR15, M16, or M4. 5.56/.223 Nickel Boron 9310 Steel Bolt MPI Bolt (Magnetic Particle Inspected) Shot Peened Bolt Grade 8 Hardened Fasteners Key Staked per Mil-Spec Black Extractor Insert Crane O-Ring

This 5.56 chambered 7.5 inch Performance Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our performance series barrels feature a FailZero Nickel Boron Coated Extended M4 Feed Ramp Extension. Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. All NFA/ATF Rules Apply

This 5.56 chambered 8 inch Modern Series Barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension. All NFA/ATF Rules Apply You may use this barrel with a lower receiver that is a Registered SBR, Machine Gun, or Pistol. Possession of this barrel along with a Non-NFA lower receiver is Prohibited, except when installed on a Pistol configuration firearm. Additional Info Length 8" Material 4150 Chrome Moly Vanadium Profile DRP Finish QPQ Corrosion Resistant Gas System Length Pistol Gas Block Journal .750"