Gun Parts

(16,181 deals total)

Product #: 732569 Manufacturer #: 42091

The AR-STONER™ Lower Pin and Spring Kit for the AR-15 platform is the perfect choice if you are looking to build your next AR-15. This kit includes a selection of the most common lost and misplaced mil-spec pins and springs in an AR-15 lower receiver. This kit is perfect for putting together a new rifle, rejuvenating an older gun or just keeping on hand for future AR-15 repairs. Includes: (2) Takedown and Pivot Pin Detent (2) Takedown and Pivot Pin Detent Spring (1) Disconnector Spring (1) Hammer Spring (1) Trigger Spring (1) Trigger Guard, Forward Assist Roll Pin

The TRIARC Systems A5 Extended Receiver Extension is a rifle length buffer tube that allows you to run an A5 buffer and a M16/A5 Green Spring. The A5 Extended Receiver extension is machined out of lightweight 7075 T6 aluminum and has a type 3 hardcoat anodized finish for lasting protection.  Features: - A5 Buffer Tube - 7075 T6 Aluminum - 5 Position Adjustments - Type III Hardcoat Anodized Finish

Includes custom Arsenal Collector's Edition Box and plush velvet bag! Circle 10 "Waffle Pattern" 7.62x39 Caliber Green 30-round magazine. Original Arsenal Bulgaria Green Polymer MIL-SPEC AK47 Magazine. These 30 round OD Green magazines can go for well over $150 each on the open market! Limit 4 per customer.

Description This Rosco 8.2″ 300 Blackout Bloodline Barrel was designed for SBR and Pistol use in conjunction with suppressors. This is the shortest that we will go to allow you the flexibility of a shorter Personal Defense Weapon (PDW) without sacrificing performance or ballistics. ALL NFA RULES APPLY!

Description Armaspec Superlight Stainless Steel Gun Builder’s Lower Parts Kit less Trigger Group & Grip for .223/5.56. If you are looking for a high end gun builder’s kit, than this one is for you. It incorporates all the great products from Armaspec in one package. - Includes Armaspec Enhanced Lower Parts - Compatible with most AR-15 lowers - Made in the U.S.A. - Lifetime Warranty COMPATIBILITY: - AR-15 lower receiver INCLUDES: - 1x Armaspec SFT 45/90 Safety Selector - 1x Bolt Catch - 1x Enhanced Superlight Takedown and Pivot Pins

SKU 51655110040B Brand Palmetto State Armory Model Number 51655110040B UPC 51655110040B DETAILS Barrel Length: 18" Gas System: Mid-Length Barrel Profile: A2 Style Barrel Steel: 416R Stainless Steel Barrel Finish: Stainless Steel Chrome Lining: None Muzzle Thread: 5/8-24 Chamber: 308 WIN Twist Rate: 1:10 Barrel Extension: M4-style Diameter at Gas Block: .750 Gas Block Type: Low-profile 3 position click switch adjustable gas block Gas Tube: Black Nitride Gas Tube Muzzle Device: A2 Style Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: PA10

AR-15 ''INFAMY'' Pistol Kit ** THIS KIT DOES NOT INCLUDE LOWER RECEIVER OR MAGAZINE ** UPPER: Handguard: AR-15 Free Float Quad Rail Handguard Carbine Length 7" Barrel: 7.5" Barrel .223 Wylde 1:7 Twist Muzzle Brake: AR15 1/2x28 Threaded .223 5.56 Thread-On Fake Can Muzzle Brake Upper Receiver: AR-15 Mil-Spec Upper Receiver (Cerro Forge Upper) BCG: AR-15 .223/5.56 Bolt Carrier Group- Black Nitride Finish Charging handle: AR-15 Tactical Rifle Charging Handle Assembly Dust Cover: AR-15 Ejection Port Cover Assembly

Made in The USA Machined from 7075-T6 Forged Aluminum Compatible with Mil-Spec AR15/M4 Components Raw Aluminum Flared Magwell for Easy Reloading Includes 10 80% Lowers

Machined from 7075-T6 Aluminum Features Broached Magazine Well Compatible with any standard AR15 upper receiver Flat Dark Earth Cerakoted Finish

Finale Factory clearance sale HYBRID 80 LIBERATOR AR15 80% lower and Jig $50! Buy 2 get Free shipping!! Store Closing Sale. Orders will be cut off at 8/23 at 6 pm.

Please check out all our other DEALS: ARM OR ALLY GUN DEALS click the link above. 17 Design Billet AR15 Lower Receiver

Davidson Defense "Harobots" AR-15 Upper Receiver 16" .300 Blackout 4150 CMV 1-8T Heavy Barrel Premium 12" M-Lok Handguard (Assembled or Unassembled) This .300 Blackout Assembled Upper Offers Amazing Stopping Power And Accuracy Which Makes It The Perfect Option For An AR Rifle. We've Felt That This Amazing Blend Of Attributes Made This Kit Adaptable In Its Use And Ability To Be Used Anywhere Under Every Circumstance.

Davidson Defense "Impromptu" AR-15 Upper Receiver 16" .300 Blackout 4150 CMV 1-8T Heavy Barrel Premium 17" M-Lok Handguard (Assembled or Unassembled) This .300 Blackout Assembled Upper Offers Amazing Stopping Power And Accuracy Which Makes It The Perfect Option For An AR Rifle. We've Felt That This Amazing Blend Of Attributes Made This Kit Adaptable In Its Use And Ability To Be Used Anywhere Under Every Circumstance. Built On A Davidson Defense Forged From 7075-T6 Aluminum. This Stripped Upper Is Precision Machined To Mil-spec M16/M4 Specifications And Features M4 Feedramps.

20 inch 350 LEGEND AR-15 Barrel, 4150 CMV and Nitrided, 1/16 Twist, Medium Contour Barrel Profile with Carbine length Gas System - made by Tactical Kinetics. Our Tactical Kinetics AR platform barrels are constructed from the finest domestically sourced steels, are drilled, reamed, and button rifled, and then profiled and chambered to exacting dimensions in compliance with SAAMI Specifications. Our high-precision manufacturing processes ensure both accurate and repeatable performance for thousands of rounds. Weight 2 Length 20 Profile Medium Twist 1:16 Finish Nitride

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. 100-026-169WB Threaded Barrel for Glock 34 SS 1/2"x28 Cartridge: 9 mm Luger Barrel Length: 5.81" Finish: Stainless Steel Style: Threaded Description Specs

Timber Creek Outdoors Enforcer AR-15 Build Kit in FDE contains many sought after parts to start your rifle build, complete your build, or just customize your existing AR-15. Highlights include an oversized ambidextrous charging handle, an extended mag release, a M-LOK handguard, a light-weight aluminum pistol grip that fits Mil-Spec lowers, and much more. Timber Creek has figured out the most popular AR-15 premium parts and assembled them all conveniently in one package.  Features: - One Package - 15in MLOK Ultra-Light Hand Guard 

Finish Your Build Kit: AR15 Rifle A2 Buttstock Kit W/ Buffer Tube Kit Assembly + Complete Mil-Spec AR-15 Lower Parts Kit + Nitrided BCG 6.5 Grendel Type 2 + AR-15 M4 Charging Handle Mil-Spec Quality AR15 Rifle A2 Buttstock Kit W/ Buffer Tube Kit Assembly

Finish Your Build Kit: AR15 Rifle A2 Buttstock Kit W/ Buffer Tube Kit Assembly + Complete Mil-Spec AR-15 Lower Parts Kit + Aero Precision AR15 5.56, .223, .300 Blackout BCG Black Nitride Aero Marked + Aero AR-15 Charging Handle AR15 Rifle A2 Buttstock Kit W/ Buffer Tube Kit Assembly

Flat Dark Earth PVD (physical vapor deposition) finish Trijicon RMR cut for optics or cover plate Installed black cover plate Iron sight cuts Front and rear serrations for ease of operation Chamfered edges Compatible with Gen 1-3 Glock Frames / Polymer80 PF940C Note: It is strongly advised to lubricate the rails before installing as this will allow the slide to break in properly.

RECENTLY REDESIGNED TO CONFORM WITH SIG SAUER'S LATEST UPDATES TO ALL MCX PLATFORMS, INCLUDING THE RATTLER AND VIRTUS, the TRYBE Defense Ambidextrous Charging Handle for Sig Sauer MCX is what you will be wanting for a smooth and reliable charge, every time! Offering a tactical feel and sturdy pull that you can count on in any scenario, this hard coat anodized mil-spec charging handle is the perfect companion for a day at the range or out in the field.

Product #: 981108 Manufacturer #: 624N-UA65CRHB1818SSF-15MSN The AR-STONER LR-308 Side Charging Upper Receiver assembly chambered in 6.5 Creedmoor delivers precision accuracy at an affordable price. The machined billet aluminum upper receiver is combined with an extruded aluminum free float M-LOK handguard and both are Type III hard coat anodized.

FN America’s 5.56x45mm AR-15 barrel is a high-quality upgrade to any AR build. The 18” barrel features M16 styling with mil-spec steel construction and a black manganese phosphate finish. The rifle length barrel has a chrome lined chamber and M4 style feed ramps compatible with 5.56x45mm and .223 Remington that help extend barrel life while providing consistent, reliable feeding while shooting. It is threaded in 1/2x28 with a 1:7 RH twist rate. Features: - 18” barrel chambered in 5.56 / .223 - Machined from mil-spec steel - Chrome lined chamber - M4 style feed ramps

100-041-516WB PCC PMAG D-50 GL9 DRUM MAGAZINE FOR GLOCK 50RD BLACK Mfr Part: MAG1137 Cartridge: 9 mm Luger Capacity: 50-Round Quantity: 1 Finish: Black Material: Polymer A Dedicated Magazine for Your Pistol-Caliber Carbine

430-102-306WB MUZZLOK 3 PORT 8.6 BLACKOUT MUZZLE BRAKE Mfr Part: FFMD863PMBSQPQ Finish: Black Threads: M18x15

100-023-416WB AR-15 RAPTOR AMBIDEXTROUS CHARGING HANDLE BLACK Mfr Part: R0001 Finish: Black Hand: Ambidextrous The Raptor™ ambidextrous charging handle by Radian Weapons (formerly AXTS) is truly revolutionary in design & function. From rapid palm “blading” or finger thumb charges of the weapon, the motion is fluid & fast from either strong or support side. Made in the USA from aircraft grade 7075 aluminum and milspec anodized. Big Book Catalog, Issue:70, Page:034 Big Book Catalog, Issue:71, Page:036 Big Book Catalog, Issue:72, Page:042 Big Book Catalog, Issue:73, Page:046

Add two to cart to be able to get the coupon code working! 430-100-156WB Grip Module, WCP365, Manual Safety, Black Mfr Part: 365-MB 430-100-159WB Grip Module, WCP365, No Manual Safety, Tan Mfr Part: 365-ST 30-100-161WB Grip Module, WCP365 Xl, Manual Safety, Black Mfr Part: 365XL-MB 430-100-164WB Grip Module, WCP365 Xl, No Manual Safety, Black Mfr Part: 365XL-SB 30-100-165WB Grip Module, WCP365 Xl, No Manual Safety, Tan Mfr Part: 365XL-ST

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. 100-025-310WB Slide Completion Kit for Glock 17 GEN 3 Cartridge: 9 mm Luger Style: Kit Description Specs

Description Introducing the Reptilia Black Hole™ Polymer Magwell for GLOCK® pistols. Molded from reinforced polymer, the Black Hole’s enlarged magazine well opening helps facilitate more efficient reloads without adding unnecessary bulk to your carry or duty sidearm. Compatible with 9mm & .40-caliber GLOCK pistols, the Black Hole utilizes a unique rear spacer to ensure seamless fit and compatibility with both Gen 3 & Gen 4 frames. Available immediately for GLOCK 19 and GLOCK 23, with GLOCK 17 variant shipping late 2019. Made for: GLOCK 19 – Generation 3

Description This .300 Blackout chambered 8.3 inch barrel is machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish. Our performance series barrels feature a Nickel Boron Coated M4 Feed Ramp Extension and are HP and MPI tested Hanson Series Barrels feature our proprietary BA Hanson profile and include a pinned lo-pro gas block. Hanson barrels are not designed to work with aftermarket piston kits. All NFA/ATF Rules Apply

AR-15 ''INFAMY MARK II'' Pistol Kit Includes: AR-15 Free Float Quad Rail Handguard 7" BCA 7.5" .223 Wylde Pistol Length Barrel | Made in U.S.A. AR-15 1/2x28 Threaded .223 5.56 Thread-On Fake Can Muzzle Brake AR-15 Mil-Spec Upper Receiver | Made in U.S.A AR-15 Lower Receiver Parts Kit | LPK17 AR-15 Tactical Rifle Charging Handle Assembly AR-15 Ejection Port Cover | Dust Cover Assembly Forward Assist Complete Mil-Spec Assembly Low-Profile Micro Steel AR Gas Block .750-Black Phosphate Finish 6.7" Stainless Steel Gas Tube-Pistol Length

16-inch purple AR-15 upper, properly built.  Includes a 223 Wylde stainless heavy barrel with Purple pvd coating.   - 16" 223 wylde barrel (shoots 5.56 or 223) - 1:8 twist - 416r stainless - Carbine gas - 1/2-28 threads - 15" 7side mlok free float handguard - a2 flash hider  - mil spec 7075-t6 upper receiver - .750 steel gas block, ss gas tube - dust cover, fwd assist Item #: 16wylde7side-purple

This Rock River Arms "Oh Shoot" kit contains all the AR-15 parts that you may wear out or lose, and allows you to quickly replace them to continue shooting. Don't let a lost pin or broken part ruin your range day! This 22 Piece Kit contains springs, pins, ring, and more.

The BULLSEYE muzzle brake was designed with three things in mind; accuracy, precision and speed. What makes the BULLSEYE the best in the world? The unique "V" shaped baffle system! There are three chambers which are slightly offset to the bore's centerline, which allow gases to escape in the perfect direction for optimum muzzle control. In addition, each BULLSEYE brake has a pilot hole that can be operator adjusted for left or right handed off hand shooting. This model was designed for custom fitting to a larger bull diameter barrel but is perfect for 3 gun! Measures 1" in diameter.

The Diamondback Firearms 7.62x39mm AR-15 Pistol Barrel is machined in house on state-of-the-art CNC machines and are thoroughly inspected at multiple stages of the build process to ensure quality. This 7” barrel is machined from 4150 Chrome Moly Vanadium Steel and is 6 groove button rifled to ensure consistent accuracy and has a 1:9.5 twist rate. The carbine length gas system is optimal for reliability with a short 7.62x39mm barrel. It is threaded 5/8x24 and features an 11 degree target crown. The final process is a salt bath Nitride finish for an added layer of protection. Features:

Troy Medieval 762 Muzzle Brake - The aggressive diamond-shaped teeth are designed for close quarter battle. It's tough enough to serve as an improvised breaching device if the situation calls for it. 6.8/7.62 (5/8 x 24 TPI) 2.25" OAL.Heat-treated ordnance steel constructionPost ban compliant when permanently attached MPN#: SBRAMED06BT00 812699010020 1376231

Davidson Defense "Kapok" AR-15 Upper Receiver 16" 5.56 NATO 4150 CMV 1-8T Barrel Premium 15" M-Lok Handguard (Assembled or Unassembled) This 5.56 Upper Offers Amazing Stopping Power And Accuracy Which Makes It The Perfect Option For An AR Rifle. We've Felt That This Amazing Blend Of Attributes Made This Kit Adaptable In Its Use And Ability To Be Used Anywhere Under Every Circumstance. This Upper Features A Davidson Defense Back Diamond Series AR-15 Billet Upper Receiver. This Upper Receiver Does Not Have A Forward Assist, However It Does Still Retain The Dust Door Cover.

DD Custom Arms Elite Series "Skagway" AR-15 Featuring A Davidson Defense Upper Receiver 16.5" Mercury Precision 5.56 NATO 4150 CMV QPQ Nitride 1-7T Barrel Premium 15" Unique AR Handguard (Assembled or Unassembled) This 5.56 Upper Offers Amazing Stopping Power And Accuracy Which Makes It The Perfect Option For An AR Rifle. We've Felt That This Amazing Blend Of Attributes Made This Kit Adaptable In Its Use And Ability To Be Used Anywhere Under Every Circumstance.

The MOE+ Grip combines reinforced polymer body construction with comfortable, wrap-around rubber overmolding for maximum weapon control in adverse environments. With a similar shape to a ‘medium’ sized MIAD, this AR-15/M4 drop-in design features a hard-polymer bottom edge to reduce the possibility of equipment snags or grip damage. The MOE+ Grip accepts optional Storage Cores for gear stowage and includes a basic grip cap. All mounting hardware included. Made in U.S.A. FEATURES Replacement for AR-15/M4 pistol-grip

Yankee Hill Machine makes some of the highest quality firearm accessories you can find. The Phantom 5.56mm Compensator is designed as a muzzle brake to reduce felt recoil. This five port design has no downward facing port which helps eliminate dust problems when shooting in the prone position. This version has the smooth face and is threaded in 1/2x28 TPI and the crush washer will be included.

This Stripped M4 flat top upper receiver is raw "in the white" and ready to be Cerakoted. Machined from 7075 T6 Forgings Mil-Std 1913 Rail for mounting optics and accessories Machined for use with barrels that use an M4 barrel extension Deep engraved T-Marks M4 Feedramps Made in the U.S.A SKU#: M4URAW-T

arftac - Use code "blasterseeds" for free shipping (code also works on LaRue MBT-2S and basic LPK) BLEMISHED: These Raptors exhibit blemishes in the finish but are fully functional. AR15 Version The Raptor is truly revolutionary in design & function. From rapid palm blading or finger thumb charges of the weapon, the motion is fluid & fast from either strong or support side. Made in the USA from aircraft grade 7075 aluminum and milspec anodized.

Ballistic's Tactical Government Profile Modern Series barrel is machined from 4150 chrome moly vanadium steel with a QPQ corrosion resistant finish and QPQ coated M4 feed ramp extension. This 16" barrel is chambered in 308 Winchester, has a mid-length gas system and 5/8x24 tpi threads. Manufacturer Ballistic Adv Pricing Unit EA Model AR Barrel UPC 819747023643 SKU BABL308003M Width 2.5000 Length 14.5000 Height 2.5000 Weight 2.3100 Caliber 308 Win Sights None Barrel Type Tactical Government Midlength Barrel Material 4150 Chrome Moly Vanadium Steel

Description Purebred 10.5″ 300 Blackout Barrel: This Rosco Purebred 10.5″ 300 Blackout Barrel was designed for SBR/ Pistol use in conjunction with suppressors. The 10.5” Rosco barrel was made to be a direct precision replacement for any MK 18 platforms that are currently in 5.56 NATO. The 10.5″ barrel is also perfect for carbines which require a slightly longer rail in order to run PEQ-15’s, D-BAL (series), or any laser aiming devices comfortably. ALL NFA RULES APPLY!

Free Shipping On Uppers - No Coupon Code Needed

The CMC Triggers Enhanced AR-15 Bolt Carrier Group has been expertly designed to increase the life and reliability of your AR rifle. It features a new geometry that reduces the amount of friction points against the upper receiver reducing wear and making the action feel smoother. It is also finish in a salt bath Nitride finish which further increases lubricity and hardness, so you can go longer between cleaning. However, it still has Mil-Spec dimensions for compatibility in all AR-15 upper receivers.

Made of German Stainless Steel (not flimsy like standard stainless steel at such a small thickness) A MUST have for any 1st time or experienced builder .07mm Thick Slides over your barrel and then your put your barrel nut over it Helps timing your barrel nut, so the proper torque specs are correct while lining up your gas tube hole Works with all AR15 barrels (does not work with .308 barrels)

DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols. Grey Ghost Precision's match grade Glock barrels have been designed and built from the ground for you to get the most performance possible out of your gen 3 or gen 4 Glock handgun. These precision-cut barrels are a drop-in fit for your favorite Glock handguns. With final tolerances kept to within three thousandths of an inch, these barrels are incredibly consistent as well. Features:

Limits are per household. Offers good while supplies last or through 11:59 pm CDT August 14, 2022. No back orders or rain checks.

Davidson Defense 5.56 NATO 16" 4150 CMV Nitride 1:8T Carbine Drop-In Handguard DIY Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "Cipher" AR-15 Rifle Featuring Davidson Defense Upper 6mm ARC 18" 4150 CMV Nitride 1:7.5T 15' M-Lok Davidson Defense Freefloat Handguard Full Build Kit (Assembled or Unassembled) Caliber: - Caliber: 6mm ARC / 6x38mm

Davidson Defense "Indy" AR-15 Rifle Featuring Davidson Defense Upper 6mm ARC 18" 4150 CMV Nitride 1:7.5T 15" M-Lok Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 6mm ARC / 6x38mm

All our uppers are carefully assembled and tested and ready to go out of the box. Every component is chosen to ensure a high quality upper is produced. Every upper is custom built to order and we go the extra mile to ensure the finished product is to your specifications.

This is a Right To Bear AR .22 LR magazine and it is designed to work with CMMG conversion kits and similar Atchisson-type .22 LR conversion systems. It features a 25 Round capacity, Grey Polymer Construction, with six hex-head screws for complete disassembly. It is the same size as a curved USGI style 30 round magazine as a result feeds very reliably. Specifications and Features: 25 Round Capacity magazine .22 Long Rifle Atchisson-type Conversion Systems Black Polymer Finish Fits: ATI Kits Right To Bear (RTB) Chiappa Kits CMMG Kits Ceiner Kits Spike's Tactical Kits

Bring comfort and style to any AR with the new XTS 106 Cheek Rest Stock. With it's adjustable cheek rest and rubber buttpad, sighting in down range has never felt more relaxed. This extremely functional buttstock would be a great addition to any AR. Specifications for XTS AR Cheek Rest Stock: Color: Black Gun Model: AR-15 Fit: Mil-Spec AR Gun Make: AR Platform

Your loyal friends at TRYBE have your back again with some new gear. Check out the high-performance TRYBE Defense AR-15 Curved Drop-In Trigger to improve your shot control while hunting, range training or match shooting. These single stage Rifle Triggers developed by the innovators at TRYBE Defense offer an adjustable pull weight of 3.5 - 5 lb so that you can customize your pull force precisely to your preference.

Designed to meet active-shooter callouts, the Blackhawk Tactical Tactical Shotgun Stocks Kit-C carries three barrier-smashing entry tools inside the Manual Entry Tool Pack. Specifications for BlackHawk Knoxx Specops Gen 3 Shotgun Stocks w/Recoil Suppression Technology: Manufacturer: BlackHawk Color: Black Additional Features: Picatinny Mount Gun Type: Shotgun Hand: Ambidextrous BW-SSC-KXSOPG3-K38701-C UPC#: 604544617283

SKU 51655120279 Brand Palmetto State Armory DETAILS Slide Material: Stainless Steel Slide Finish: Flat Dark Earth Cerakote Optics Mount: Doctor Cut Front Sight: Ameriglo 2XL Tall .350" Serrated Sight Rear Sight: Ameriglo 2XL Tall .429" Sight Red Dot: Vortex Venom 3 MOA Red Dot Sight *Compatible with all PSA Dagger compact Frames and Gen3 compatible frames. FEATURES

SKU 516551303786B Brand Palmetto State Armory Model Number 516551303786B UPC 516551303786B PRODUCT DETAILS DETAILS Barrel Length: 18" Gas System: Mid-Length Barrel Profile: Heavy Barrel Steel: 416R Stainless Steel Barrel Finish: Stainless Steel Chrome Lining: None Muzzle Thread: 5/8-24 Chamber: .308 WIN Twist Rate: 1/10" Barrel Extension: M4-style Diameter at Gas Block: .750 Gas Block Type: Low-profile 3-position click switch adjustable gas block Gas Tube: Black Nitride Gas Tube Muzzle Device: A2 Style Flash Hider Receiver Material: Forged 7075 T6 Receiver Type: PA10

100-018-766WB AR-15 PRSGen3 Precision Stock Adjustable Rifle Length FDE Color: Flat Dark Earth Style: Adjustable Type: Rifle Length Material: Polymer Description