AR-15 Upper Parts

NcSTAR AR-15/M4 Quad Rail Handguard The NCStar AR-15/M4 Quad Rail Handguard is designed to replace the standard AR-15/M-4 handguards, installing in minutes with no gunsmithing or modifications required. Features: Made of solid anodized aluminum for...

Model: G-4 Billet "Slick Side" (Gen 2) Upper Receiver Caliber: Multi Other Specifications and Features of the G-4 Billet "Slick Side" (Gen 2) Upper Receiver: Machined from 7075 T6 aircraft grade billet aluminum Matte black hard-coat anodized...

ODIN Works 10.5" Pistol .300 BLK Medium Profile Barrel w/ Tunable Gas Block - Black Nitride Precision and Performance for Your AR-15 Pistol Build The ODIN Works 10.5" Pistol .300 Blackout Medium Profile Barrel is built to deliver peak performance and...

ODIN Works 16" 9mm SuperLite Barrel The ODIN Works Super Lite 9mm PCC barrels are the best "high speed, low drag" barrels you will find on the market.  Made in Boise, ID from 416 stainless and 6061 aluminum, these barrels look and shoot great...

ODIN Works Enhanced 9mm Stainless Steel Bolt Carrier Group Introducing our new ODIN Works Enhanced Series, 9mm bolt carrier group. Innovative and unlike anything in the industry, this feature packed bolt carrier group is the new standard. Features like a...

ODIN Works R2 M-LOK Free Float Handguard Strong, Lightweight, and Uniquely Designed for Fast Installation The R2 Forend is the more simplified geometric evolution of the rugged Ragna Forend design. Engineered to deliver the fastest possible install, the...

POF Triple Port AR 15 Muzzle Brake .223/5.56 Designed by POF-USA this nitride heat treated muzzle brake controls muzzle impulse for ultimate accuracy and an unbelievably soft recoil. Comes complete with a nitride heat treated collar and five (5) strike...

Proof Research Barrel's are a high quality barrels which are made to extremely high quality standards. The design and manufacturing processes which are used are state of the art and go above and beyond. Each barrel produced will exemplify their founders...

Radian Raptor-SD Ambidextrous Charging Handle Suppressor-Optimized, Ported Design for Superior Gas Redirection The Radian Raptor-SD Ambidextrous Charging Handle is engineered specifically for suppressor use, featuring a unique ported shaft that redirects...

Rosco's Bloodline 16" 5.56 Heavy Barrel: This Rosco 16" 5.56 Heavy Barrel (HB) was made to cater to end users who need to run their guns hard without any remorse. The heavy contour barrel is well suited for full auto use and abuse. Our Rosco 5.56 (NATO)...

The K9 13.95 features a mid-length gas system with an optimized gas port to run reliably suppressed and/or unsuppressed. The K9 continuous taper is the most effective profile to dissipate heat from hard use. With weight shifted to the back of...

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...

SLR Rifleworks Synergy Mini Comp 5.56 for 14.5" Barrels Synergy Mini Compensator 5.56 for 14.5 Barrels to meet 16.1" OAL Specifications: 1/2x28 Threading Melonite QPQ Finish No ports on bottom to reduce ground blast .252 bore .862 Dia Works with VG6...

SOLGW 12.5" 6MM MAX SPR Barrel - 416SS, P3 Rifling, Black Finish Precision and Durability in a Compact Barrel The Sons Of Liberty Gun Works 12.5" 6MM MAX SPR Barrel is designed to deliver precision accuracy and reliable performance in a compact form...

Sons Of Liberty Gun Works Forward Assist Kits Rebellious Stripes Complete Forward Assist Kit with Exclusive Rebellious Stripes Design The Sons Of Liberty Gun Works Forward Assist Kit with the exclusive Rebellious Stripes design adds a unique touch to...

Spike's Tactical Flat Top Forged AR 15 Upper Receiver Spikes Tactical's mission is simple, Spikes strives to build the highest quality products and offer them at the best possible price to the consumer. It doesn't matter if you are simply a gun...

Spike's Tactical Forged AR 15 Charging Handle Standard AR-15 charging handle compatible with all Spike's upper options. Features: Forged 7075 T6 Aluminum Mil-Spec Type-III Hardcoat Anodized

Stag Arms A3 Flattop Left-Handed Upper Receiver Assembly The Stag Arms A3 upper receiver assembly is our very first Left-Handed upper receiver, available on ar15discounts.com. It is made to mil-spec standards and includes a picatinny rail...

Timber Creek Billet Dust Cover (Black) A great way to upgrade your rifle is to install a TCO Billet Dust Cover. Features: Fits any Mil-Spec upper ejection port Made from aircraft grade aluminum

Timber Creek Outdoors AR Forward Assist (Black) The Timber Creek Outdoors AR Forward Assist Assembly is a drop-in upgrade replacement. It is compatible for use with Mil-Spec AR-15 and AR-10 upper receivers alike. The AR Forward assist assembly can be...

Toolcraft .223/5.56/300 BLK M16 C158 Profile Bolt Carrier Group - P51 (Polished DLC) This Toolcraft P51+ Polished DLC BCG is made with a carpenter 158 bolt with a full-auto profile, designed to be used in AR-15 & M-16 style rifles. Bolt is...

UTG 13" AR15 Super Slim Free Float Rail System (FDE) The Leapers UTG Super Slim free float handguard is a lightweight, ergonomic handguard for the AR-15. The free floated design increases airflow around the barrel for increased cooling, as well as...

UTG Handguard - 15" Super Slim - Free Float Keymod Made in America, the Leapers UTG PRO 15" Super Slim Keymod handguard is a high quality free float design that offers exceptional performance. It includes two Keymod compatible Picatinny rail sections, 4...

VLTOR VC-9 9mm Flash Hider - 1/2-28 The Vltor VC-9 compensator is machined from 17-4 stainless steel, and features a mil-spec black oxide surface treatment (MIL-DTL-13924). The unique port design on this compensator is configured to redirect gases in a...

Nearly two decades of building the finest custom tactical AR-15 rifles have given us the insight to develop a comprehensive line of stainless steel, match grade barrels that offer superior accuracy, reliability and longevity for your next custom AR rifle...

Wilson Combat AR-15 Bullet-Proof Ambidextrous Charging Handle The Ultimate Ambidextrous Charging Handle for Smooth, Reliable Operation. Wilson Combat has revolutionized the AR-15 charging handle with the introduction of the Bullet-Proof Ambidextrous...

.936 Low Profile Gas Block - Black Nitride The .936 Low Profile Gas Block - Black Nitride ensures an efficient and reliable gas system for your AR-15 or .308 build. Paired with our gas tubes, it delivers optimal performance and durability...

  12" Aero Precision M4E1 Enhanced Upper Receiver and M-LOK Handguard Combo Gen 2 Aero Precision M4E1 Enhanced Upper Receiver and M-LOK handguard combo comes with the upper and handguard mounting platform. . Gen 2 Aero handguards include many...

16" .223 Wylde 1:8 Government Stainless Steel Mid-length Barrel Experience precision with the 16" .223 Wylde Stainless Steel Mid-length Barrel from Black Rifle Depot. Designed to optimize both .223 Rem and 5.56 NATO rounds without compromising...

16" .223 Wylde 1:8 Twist Barrel .223 Wylde is a hybrid chamber developed to accommodate the match grade civilian ammunition of the 223 Remington and the high-pressure military grade 5.56 NATO. Both calibers are widely available and excellent for...

16" 5.56 Parkerized 1:9 Twist Carbine Length Barrel We collaborate with leading machine shops and barrel manufacturers at Black Rifle Depot to offer exceptional barrels under the BRD brand. By sourcing from top-tier American manufacturers and purchasing...

20" 5.56 NATO 1:9 Twist Phosphate Rifle Government Barrel Built for Precision, Priced for Value – Your Long-Range AR Starts Here. The 20" 5.56 NATO 1:9 Twist Phosphate Rifle Government Barrel from Black Rifle Depot delivers long-range consistency,...

8" .45 ACP Medium Black Nitride Barrel Black Rifle Depot prides itself on partnering with premier machine shops and barrel manufacturers across the USA. When we discover a barrel maker that meets our exacting standards, we proudly private label their...

9mm 1/2-28 A2 Birdcage Flash Hider Enhance your firearm with the 9mm 1/2-28 A2 Birdcage Flash Hider. Featuring a 1/2x28 thread, this flash hider is compatible with both 9mm and 5.56 calibers. Its durable nitride finish ensures longevity, and it comes...

Gas rings are an often overlooked part when diagnosing reliability issues with an AR-10. The gas rings are an expendable part that need to be replaced eventually. It is always important to have some backups and Sprinco USA has you covered. This pack of 9...

  Aero Precision 15" Quantum M-LOK AR 15 Handguard The AERO Precision Quantum Series M-LOK Handguards minimize bulk while providing an adaptive free float design that is big on features. With multiple mounting options, this affordable, rigid...

Aero Precision 16" 5.56 Government Profile Midlength AR-15 Barrel The Aero Precision 16″ 5.56 CMV Barrel is built for shooters who demand accuracy, durability, and smooth operation in their AR-15 build. Manufactured...

Aero Precision 18" 6.5 Grendel SPR 416R Stainless Steel Nitride Rifle 1:8 AR-15 Barrel This 6.5 Grendel "Type 2" chambered 18-inch barrel is machined from 416 Stainless Steel with a bead blasted finish. It features a Nickel Boron Coated Extended M4 Feed...

  Aero Precision 9" Quantum M-LOK AR 15 Handguard The AERO Precision Quantum Series M-LOK Handguards minimize bulk while providing an adaptive free float design that is big on features. With multiple mounting options, this affordable, rigid system...

Aero Precision M4E1 Threaded Assembled Upper Receiver - OD Green The AR15 Assembled Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this assembled upper is precision machined to mil- spec M16/M4...