Uppers Gun Parts

(3,448 deals total)

Davidson Defense "The Combustor" AR-15 Pistol Featuring Davidson Defense Upper .223 Wylde 10.5" 4150 CMV Nitride 1:8T 10" M-Lok Davidson Defense Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Builder's Grade Complete 16" 9mm Upper Receiver | A2 | 15" M-LOK Handguard | Pistol Caliber | Black | With Bolt Carrier Group and Charging Handle This Complete 16 inch M-LOK upper receiver comes with a 15 inch free-float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 M4 barrel.

Davidson Defense "Mule Train" LR-308 Rifle Featuring Davidson Defense Upper 6.5 Creedmoor 20" 4150 CMV 1:8T 15 KeyMod Presma Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 6.5 Creedmoor / 6.5x48mm

Davidson Defense "Diamond Duck" AR-15 Pistol Featuring Davidson Defense Upper 9MM 4.5" 4150 CMV Nitride 1:10T 4" M-Lok Gauntlet Arms Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

Davidson Defense "Concussive Whisper" AR-15 Pistol Featuring Davidson Defense Upper 7.62x39mm 7.5" 4150 CMV Nitride 1:10T 7" M-Lok Davidson Defense Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

Davidson Defense "The Immortal Night" AR-15 Pistol Featuring Davidson Defense Upper 7.62x39mm 7.5" 4150 CMV Nitride 1:10T 7 M-Lok Gauntlet Arms Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

UPPER RECEIVER: AR-15 Mil-Spec Machined out of 7075-T6 Forged Aluminum, M4 Feed Ramps, Type III Hardcoat Anodized Black with Forward Assist and Ejection Port Cover Installed BARREL: 13.7 inch, 5.56 NATO Caliber, 4150 Chrome Moly Vanadium Steel, 1:7 Twist, Medium Profile, Nitride/Melonite Treated - made by Ballistic Advantage HANDGUARD: 15 inch M-LOK Free Floated, Machined out of 6061 T6 Aluminum – made for us by Bowden Tactical GAS SYSTEM: Mid Length, Direct Impingement, Stainless Steel Tube GAS BLOCK: Low Profile Gas Block, Machined out of 4140 Steel

Product #: 334918 Manufacturer #: 452-1010-003 UPC #: 811163038744

Product #: 486710 Manufacturer #: 452-1010-002 UPC #: 811163038737

Product #: 962619 Manufacturer #: 451-1010-008 UPC #: 811163039147

The Evolve Weapons Systems AR-15 Barreled Upper Receiver chambered in 5.56 NATO is a great starting point for your next duty rifle build. EWS firearms are built with high quality components and materials like a forged 7075-T6 aluminum upper and a 416R stainless steel barrel with a Nitride finish. The 12.5 inch barrel also features a patrol-length gas system and a 1:7 twist rate and an A2 style flash hider. The free float handguard features an M-LOK handguard with grip texturing machined in. Features: 12.5" 5.56 Barrel Nitride finish Patrol-length gas system 1:7 Twist rate

Davidson Defense "Retro Thruster" AR-15 Rifle Featuring Davidson Defense Upper 7.62x39mm 16" 4150 CMV Nitride 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber:

080-001-400WB BRN-180S 300BLK UPPER W/SPARC SOLAR RED DOT Cartridge: 300 AAC Blackout Finish: Anodized Style: Complete Color: Black Length: 10" Muzzle: 5/8-24, ... click details to view more....

Barreled 16" 5.56 Carbine Upper Receiver | A2 | 15" M-LOK - Sniper Grey NO BCG OR CHARGING HANDLE INCLUDED This Barreled 16 inch M-LOK upper receiver comes with a 15 inch free-float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 M4 barrel. Barrel: Length - 16" Material - 4150 Chrome Moly Vanadium Finish - Parkerized Profile - M4 Contour Gas System Length - Carbine Length Gas Block Journal - .750" Twist Rate - 1:7 inches Muzzle - 1/2x28 Threaded Weight - 2.5 Pounds Other Info - M4 Feed Ramps Upper Receiver:

430-103-690WB AR15 14.5" M4 UPPER RECEIVER 1-9 Mfr Part: BA-F14 Starts with Luth-AR’s 14.5″ M4 Government Profile with F Marked Front Sight Base, 5.56mm barrel made from 4150 CMV with a 1-9″ twist paired to their A3 Flattop receiver which includes the Luth-AR bolt carrier, charging handle, forward assist and ejection port cover. Upper Specs: 7075-T6 Forging Hard coat anodize Black Bolt Specs: Bolt: Carpenter 158 steel Extractor: 4140 Alloy steel Army Spec Heat Treatment Manganese Phosphate Bolt Carrier Specs: Carrier: 8620 steel Cam pin: 4340 Alloy steel

This Complete 7.5 inch M-LOK upper receiver comes with a 7.25 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 M4 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean. Barrel: 7.25" 5.56 4150 CMV Barrel - Parkerized M4 Carbine Profile - .750" GB Journal 1:7 Twist Rate - 1/2x28 Muzzle Thread Fitted with A2 Flash Hider Bolt Carrier Group: Enhanced 9310 Steel (Bolt) 8620 Tool Steel (Carrier)

Davidson Defense "The Great Custer" AR-15 Pistol Featuring Davidson Defense Upper 5.56 NATO 7.5" 4150 CMV Nitride 1:7T 10" M-Lok 2A Armament Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Masta" LR-308 Rifle Featuring Davidson Defense Upper .308 WIN 16" 4150 CMV Nitride 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel: - Barrel:

Davidson Defense "Gravity Turn" LR-308 Rifle Featuring Aero Precision Upper .308 WIN 16" 4150 CMV Nitride 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel: - Barrel:

Barreled 10.5" 5.56 Pistol Upper Receiver | A2 | 9" M-LOK - FDE NO BCG OR CHARGING HANDLE INCLUDEDClick here for Charging HandlesClick here for Bolt Carrier Groups This Barreled 10.5 inch M-LOK upper receiver comes with a 9 inch free-float handguard and is built with only the best Mil-Spec components.

Description The Mil Spec AM-15 stripped Upper Receiver is machined from 7075 T6 Aluminum forging. Featuring M4 feed ramps, this upper receiver is machined to Military Specifications & Standards and can be used with multiple calibers on the AR-15 platform. This upper receiver comes not finished in raw aluminum, ready for your coating of choice to make it completely custom! Match this Upper with one of our Lower Receivers for a solid fit. Features: - Mil Spec, Standard Specifications: - Material: 7075 T6 Aluminum Forging - Finish: Unfinished, White

Daniel Defense 23-004-13150 M4A1 FDE 5.56 NATO 14.5" Bbl Upper Receiver Group w/Pinned Ext. Flash Hider

Builder's Grade 5.5" 9mm Upper Receiver - Black | FLASH CAN | 7" M-LOK | Without Bolt Carrier Group and Charging Handle This 5.5 inch M-LOK upper receiver comes with a 7 inch free float handguard and is built with only the best Mil-Spec components.

This Complete 7.5 inch M-LOK upper receiver comes with a 9.25 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 M4 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean. Barrel: 7.25" 5.56 4150 CMV Barrel - Parkerized M4 Carbine Profile - .750" GB Journal 1:7 Twist Rate - 1/2x28 Muzzle Thread Fitted with Flash Can Bolt Carrier Group: Enhanced 9310 Steel (Bolt) 8620 Tool Steel (Carrier) Bolt is shot Peened and MPI

This Complete 10.5 inch M-LOK upper receiver comes with our RTB 12 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel and our black nitride bolt carrier group that is finished with an incredible polish, making the action smooth and easy to keep clean. Barrel: Length - 10.5" Material - 4150 Chrome Moly Vanadium Profile - Government Finish - QPQ Corrosion Resistant Gas System Length - Carbine Gas Block Journal - .750" Twist Rate - 1:7 inches Muzzle - 1/2x28 Threaded Weight - 19oz

RTB Barreled 10.5" 5.56 Upper Receiver - Flat Dark Earth | A2 | 9" M-LOK This Barreled 10.5 inch M-LOK upper receiver comes with our RTB 9 inch free float handguard and is built with only the best Mil-Spec components.

RTB 10.5" 5.56 Upper Receiver | FLASH CAN | 12" M-LOK | Without Bolt Carrier Group and Charging Handle This 10.5 inch M-LOK upper receiver comes with our RTB 12 inch free float handguard and is built with only the best Mil-Spec components.

If you're searching for a great price on the V Seven Gi Heavy 556/223 Complete Upper, then you have turned up at the right spot.Developed working with some of the very most strong and dependable components in existence, these AR15 Upper Receivers by V Seven will present you with a product that will give numerous years of dependability.V Seven has been generating high-quality products for a very long time, and the V Seven Gi Heavy 556/223 Complete Upper is their means of demonstrating exactly how much they are concerned.Right here at OpticsPlanet, we make it our obligation to receive the perfec

This Barreled 16 inch M-LOK lightweight upper receiver comes with our RTB 12 inch free float handguard and is built with only the best Mil-Spec components. The heart of this upper is comprised of a 4150 barrel. Barrel: Length - 16" Material - 4150 Chrome Moly Vanadium 11-Degree Target Crown - Further improve accuracy Profile - Pencil Finish - QPQ Corrosion Resistant Gas System Length - Mid-Length Gas Block Journal - .625" Gas Block Journal Twist Rate - 1/7 Twist Muzzle - 1/2x28 Threaded Weight - 22.7 oz Upper Receiver:

The SOLGW M4-76 is a great entry level AR-15 barreled upper receiver package that comes with all the features you want for a reliable, do-it-all AR rifle, that's built for duty. This model features a 13.9” barrel machined from 4150 chrome moly vanadium steel and QPQ Nitride finished inside and out. The six groove 1/7 twist rate is optimal for heavy 62 grain 5.56 NATO surplus ammunition. The Mid-length gas system and appropriate gas port size ensures reliable function under any conditions and minimal recoil.

AR-15 5.56/.223 16" BULL UPPER ASSEMBLY / 15" MLOK RAIL / BLACK. CA and NY compliant. PLEASE NOTE: WE CAN NOW MAKE THE RAIL IN ANODIZED BLACK ONLY. PICTURE SHOWS RAIL IN THE RED (NOT AVAILABLE) Action: Semi-auto Barrel: 16" heavy profile, 4150V steel, chrome moly, heat treated, black, M4 feedramps, .750 gas block diameter. Gas System: Carbine Length Gas System Chamber: 5.56 (accepts both, 5.56 NATO/.223 REM) Twist Rate: 1/8 button rifled* Muzzle Device: target crown Handguard: 15" Rifle-length Free Float in BLACK

Davidson Defense 'Aviere' AR-15 Rifle Complete Kit Featuring Davidson Defense Upper .350 Legend 16" 4150 CMV QPQ Nitride 1-16T 15" M-Lok Handguard (Assembled or Unassembled) Caliber Info: - Caliber Info:

Davidson Defense "Attitude Adjustment" LR-308 Rifle Featuring Aero Precision Upper .308 WIN 18" 4150 CMV Nitride 1:10T 17" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is an excellent option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits eliminate the hassle of building your custom firearm. Barrel: - Barrel:

Davidson Defense "SicSwag" LR-308 Rifle Featuring Davidson Defense Upper .308 WIN 16" 4150 CMV Nitride 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel: - Barrel:

Davidson Defense "Muse" LR-308 Rifle Featuring Aero Precision Upper .308 WIN 16" 4150 CMV Nitride 1:10T 15" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel: - Barrel:

Craft the build out of your dreams with the Aero Precision AR15 Complete Upper Receiver. These AR15 Upper Receivers from the innovators at Aero Precision feature a 5.56 barrel that is chambered for precision shooting. With a standard A2 flash hider, the Aero Precision 5.56 w/Magpul Complete Upper Receiver reduces overall flash while looking stylish. Forged from aluminum, this aftermarket accessory competes your upper receiver. Precision machined, the Aero Precision MOE SL Handguard Complete Upper Receiver lives up to the quality standards of civilians, military, and LEO.

Davidson Defense "Thrax" LR-308 Rifle Featuring Aero Precision Upper 6.5 Creedmoor 20" 4150 CMV Nitride 1:8T 15" M-Lok Gauntlet Arms Free Float Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 6.5 Creedmoor / 6.5x48mm

Davidson Defense "Lateral Strike" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" 4150 CMV Nitride 1:7T 15 M-Lok 3rd Gen Tactical Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Lateral Strike" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" 4150 CMV Nitride 1:7T 15 M-Lok 3rd Gen Tactical Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Challenge" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" 4150 CMV Nitride 1:7T 15 M-Lok Trinity Force Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Davidson Defense "Rippey" LR-308 Rifle Featuring Davidson Defense Upper 6.5 Creedmoor 20" 4150 CMV 1:8T 19" M-Lok Gauntlet Arms Free Float Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 6.5 Creedmoor / 6.5x48mm

P2 AARS Upper Features The Adams Arms P2 model is the tactical, battle-ready model in the P-Series lineup. The P2 model includes an ergonomic free float rail that covers the P-Series Micro Block Adjustable piston system. This upper features an A2 flash hider and an ambidextrous charging handle. The P2 is your off-the-shelf, tactical model that is configurable for any type of shooter.

Davidson Defense "Silver Lion" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" 4150 CMV Nitride 1:8T Carbine M-Lok B5 Systems Drop-In Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

This Upper Receiver Handguard Combo now includes our Gen 2 Enhanced Handguard! Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the picatinny top rail. Anti-Rotation Tabs. Feed Ramp Extension. Scalloped Rails. Continuous Top Rail. Specifications for Aero Precision M4E1 5.56 Rifle Barrel Complete Upper Receiver: Caliber: 5.56x45mm NATO Gun Model: AR-15 29D-URC-M4E1CMRB-APAR640222M2

This Complete Upper includes our Gen 2 Enhanced Handguard. Key features include the addition of quick disconnect sling sockets, enhanced milling design for grip and visual appeal and a new profile for the Picatinny top rail. Specifications for Aero Precision M5E1 20in Complete Upper Receiver: Caliber: 6.5mm Creedmoor Barrel Length: 20 in Handguard Length: 15 in Gun Rail: M-LOK Gun Model: M5 29D-URC-M5E1CRLB-APAR308554M45 UPC#: 815421021486

UPPER RECEIVER: AR-15 Mil-Spec Machined out of 7075-T6 Forged Aluminum, M4 Feed Ramps, Type III Hardcoat Anodized Black with Forward Assist and Ejection Port Cover Installed BARREL: 12.5 inch, 5.56 NATO Caliber, 4150 Chrome Moly Vanadium Steel, 1:7 Twist, Govt Profile, Nitride/Melonite Treated - made by Kak Industry HANDGUARD: 12 inch M-LOK Free Floated, Machined out of 6061 T6 Aluminum – made for us by Ghost Firearms GAS SYSTEM: Mid Length, Direct Impingement, Stainless Steel Tube GAS BLOCK: Low Profile Gas Block, Machined out of 4140 Steel

100-040-502WB AR-15 11.5 Super Duty Stripped Upper Receiver Black Mfr Part: 08245B Item Details Cartridge: 5.56 mm NATO Contour: Geissele Finish: Black Length: 11.5" Style: Stripped Twist: 1-7 Made in the USA Make Model Make: AR-15 The Geissele Super Duty Upper (Stripped) features the quality and worksmanship you've come to expect from the Geissele name.

AR15 Billet Slick Side Upper Receiver - Stripped: AR15 Billet Slick Side Upper Receiver Is Machined From T6 6061 Aluminum, Hard-Coat Anodized Per Mil-a-8625 Type III, Class II Black for Ultimate Longevity. Machined with M4 Feedramps and Designed to Work with Mil-Spec Lower Receiver and Components. Specifications for Ammunition Storage Components AR15 Billet Slick Side Upper Receiver: Color: Black Finish: Hard-Coat Anodized MIL-A-8625 Type III, Class II Black Fabric/Material: T6 6061 Aluminum Gun Make: AR Platform Gun Model: AR-15 Handguard Type: Free-Float Gun Type: Rifle

This AR15 Complete Upper Receiver, paired with the ATLAS handguard streamlines the appearance of your next AR15 build by removing the Forward Assist. By combining our lightest handguards and barrel profiles with the No Forward Assist Upper Receiver you can maximize the weight savings for your next build. Specifications for Aero Precision AR15 5.56 Complete Upper Receiver: Color: Black Finish: Anodized Caliber: 5.56x45mm NATO Attachment/Mount Type: M-LOK Gun Rail: M-LOK Muzzle Device: A2 Flash Hider Gun Model: AR-15 Additional Features: Mid Length Barrel

Davidson Defense "Lytes" AR-15 Pistol Featuring Aero Precision Upper 9MM 7" 4150 CMV Nitride 1:10T 7 M-Lok Davidson Defense Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 9mm / 9x19

SKU 51655126859 Brand Panzer Arms Model Number ULT 0116 UPC 051497297985 DETAILS Brand: Panzer Arms Model: AR57 ULT Product Type: Upper Receiver Caliber: 5.7x28mm FEATURES

DD Custom Arms "Everest" AR-15 Rifle Featuring Cobalt Kinetics Upper 5.56 NATO 16" 4150 CMV Nitride 1:8T Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

DD Custom Arms "One-Circle" AR-15 Rifle Featuring Cobalt Kinetics Upper 5.56 NATO 16" 4150 CMV Nitride 1:7T Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

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. 078-000-367WB Iron Sight Slide for Gen3 Glock™ 19 Stainless Nitride Cartridge: 9 mm Luger Finish: Black Style: Front & Rear Serrations Sights: Dovetail A Unique Design That Aids in Weapon Manipulation The Brownells Front Cut Slides for Glock® pistols allows any operator to build a custom Glock® style pistol from the ground up with a slide already customized with front slide serrations.

Davidson Defense "Taboo Baboon" AR-15 Rifle Featuring Davidson Defense Upper 5.56 NATO 16" 4150 CMV Nitride 1:8T 15" M-Lok Davidson Defense Freefloat Handguard Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

DD Custom Arms "Prang" LR-308 Rifle Featuring Gauntlet Arms Upper .308 WIN 20" 4150 CMV Nitride 1:10T 15 M-Lok Lakota Ops Freefloat Handguard Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: .308 Winchester / 7.62x51 NATO If you love the AR platform but are looking to use a round that reaches further and has more power, this LR-308 Upper Build Kit is a great option at a great price. Our .308 Winchester LR-308 Rifle Upper Build Kits take the hassle out of building your custom firearm. Barrel: - Barrel:

DD Custom Arms "Exothermic" AR-15 Rifle Featuring Cobalt Kinetics Upper .350 Legend 16" 4150 CMV Nitride 1:16T Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: .350 Legend / 9x43mm

DD Custom Arms "Sidewinder" AR-15 Rifle Featuring Cobalt Kinetics Upper 5.56 NATO 16" 416R SS Stainless 1:8T Complete Upper Build (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

DD Custom Arms "Sidewinder" AR-15 Rifle Featuring Cobalt Kinetics Upper 5.56 NATO 16" 416R SS Stainless 1:8T Upper Build Kit (Assembled or Unassembled) Caliber: - Caliber: 5.56x45 NATO / .223 Remington

Grey Ghost Precision worked hard to produce an extremely accurate semi-automatic rifle that fit specific requests from soldiers operating in Afghanistan. Coupled with evaluations by Special Forces marksmanship instructors, competition shooters and hardcore hunters, the final form of the "Barking Dog" has several cutting-edge enhancements that make it the most reliable nail-driver in its class. Now this level of precision is available in a complete upper receiver configuration. GGP Billet Receivers are precisely machined from 7075-T6 Aluminum for a perfect fit to your lower. Features