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36 of 48 Items
  • AR-15 A2 "Birdcage" .223/5.56mm Flash Hider by Aim Sports AR-15 A2 "Birdcage" .223/5.56mm Flash Hider by Aim Sports

    AR-15 A2 "Birdcage" .223/5.56mm Flash Hider

    Your AR-15 needs a reliable muzzle device right out of the gate to finish off your build. The AR-15 A2 "Birdcage" .223/5.56mm Flash Hider is the jack of all trades when it comes to AR muzzle devices. Due to its 5-port design, it'll conceal the flash,...

    $9.99
  • AR15 Tapered Steel Crush Washer 1/2"x28 AR15 Tapered Steel Crush Washer 1/2"x28 2

    AR15 Tapered Steel Crush Washer 1/2"x28

    If you plan on going the standard (and the easiest) route with the muzzle end of your .223 or 5.56mm chambered AR by installing a muzzle device, you'll need a crush washer. This is the one you need. You just slide it onto the threading of your barrel,...

    $1.49
  • 12-m-lok-free-floating-handguard-1 12-m-lok-free-floating-handguard-2 12-m-lok-free-floating-handguard-3 12-m-lok-free-floating-handguard-4 12-m-lok-free-floating-handguard-5

    12" Slanted-End M-Lok Free-Floating Handguard

    Need some "front end with an attitude" to finish off that AR build of yours? How 'bout 12 inches on top and slightly less underneath? Put the finishing touches on your standard-sized AR-15 with this handguard. You get enough rail space on top to mount...

    $74.99
  • AR15 A2 Birdcage Flash Hider by Aero Precision

    AR15 A2 Birdcage Flash Hider by Aero Precision

    If you plan to build your own AR-15, and you don't intend to use any specialized type of muzzle device, then the Aero Precision AR15 A2 Birdcage Flash Hider is a good direction in which to head. While it won't outright beat out any specialized muzzle...

    $7.99
  • RVG® - Rail Vertical Grip by Magpul

    Magpul RVG® - Rail Vertical Grip

    The Magpul RVG is a traditional vertical grip made out of durable polymer that is lightweight and has a low profile. The aggressive TSP texture allows for more control in any rugged environment. The RVG is designed to be used with the 1913 Picatinny rail...

    $24.95
  • 13-5-m-lok-free-floating-handguard-1 13-5-m-lok-free-floating-handguard-2 13-5-m-lok-free-floating-handguard-3 13-5-m-lok-free-floating-handguard-4 13-5-m-lok-free-floating-handguard-5

    13.5" M-Lok Free-Floating Handguard

    Need some "front end" to finish off that AR build of yours? How 'bout 13.5 inches of it? Put the finishing touches on your standard-sized AR-15 with this handguard. You get enough rail space on top to mount your backup sights or even optics. The M-Lok...

    $49.99
  • 12-m-lok-free-floating-handguard-1 12-m-lok-free-floating-handguard-2 12-m-lok-free-floating-handguard-3 12-m-lok-free-floating-handguard-4 12-m-lok-free-floating-handguard-5

    12" M-Lok Free-Floating Handguard

    Need some "front end" to finish off that AR build of yours? How 'bout 12 inches of it? Put the finishing touches on your standard-sized AR-15 with this handguard. You get enough rail space on top to mount your backup sights or even optics. The M-Lok...

    $49.99
  • M-LOK® Rail Covers, Type 2 by Magpul

    Magpul M-LOK® Rail Covers, Type 2

    You finally finished your AR and mounted all your add-ons to your M-Lok handguard. It may fine to grip, but it'd be a lot better with more gripping texture instead of all those remaining M-Lok slots. That's why Magpul gives you their Type 2 M-Lok Rail...

    $12.95
  • Magpul 5-Slot MOE® Polymer Rail

    Magpul 5-Slot MOE® Polymer Rail

    M-Lok handguards have seriously upgraded the way we mount our add-ons onto our ARs. But if you have an accessory that's not M-Lok compatible and still uses the 1913/pic rail system, you need some rails. Well we got the rails. This is a five-slot section...

    $5.95
  • AR15 Low-Profile Gas Block - .750" AR15 Low-Profile Gas Block - .750" 2 AR15 Low-Profile Gas Block - .750" 3

    AR15 Low-Profile Gas Block - .750"

    Every gas-operated AR (those that don't use a piston system) uses a gas block of some type to cycle between shots. If you're building one of those old-school or retro style AR, yours may have a fixed front sight that doubles as the gas block or some...

    $19.99
  • AR10/AR15 Carbine Length Gas Tube

    AR10/AR15 Carbine Length Gas Tube

    If your gas-operated AR-15, LR-308, or AR-10 is to cycle your ammo, it needs a gas tube. This is the correct gas tube. It is compatible with AR-15 and LR-308 / AR-10 sized rifles. See below for more info. Features: Stainless Steel Gas Tube for AR15...

    $12.99
  • UTG® Quick Install Dust Cover -  .223/5.56,  Black UTG® Quick Install Dust Cover -  .223/5.56,  Black 2 UTG® Quick Install Dust Cover -  .223/5.56,  Black 3 UTG® Quick Install Dust Cover -  .223/5.56,  Black 4 UTG® Quick Install Dust Cover -  .223/5.56,  Black 5

    UTG® Quick Install Dust Cover - .223/5.56, Black

    Installing a dust cover onto your AR's upper receiver can be a major hassle. If you're starting with just individual parts, you need to snap the C-clamp onto the rod without launching the damned thing across the room and never seeing it again. Then you...

    $5.99
  • Magpul® AR15 Furniture Kit - MOE®, Carbine-Length Magpul® AR15 Furniture Kit - MOE®, Carbine-Length 2 Magpul® AR15 Furniture Kit - MOE®, Carbine-Length 3 Magpul® AR15 Furniture Kit - MOE®, Carbine-Length 4 Magpul® AR15 Furniture Kit - MOE®, Carbine-Length 5

    Magpul® AR-15 Furniture Kit - MOE®, Carbine-Length

    If you specifically have an M4-style or a CAR-15-style AR-15 with all stock parts including the carbine-length gas system, and you want some upgrades, then this is for you. You can get several comfort and quality-of-life upgrades all in one place with...

    $85.35
  • Magpul® AR-15 Furniture Kit - MOE®, Mid-Length Magpul® AR-15 Furniture Kit - MOE®, Mid-Length 2 Magpul® AR-15 Furniture Kit - MOE®, Mid-Length 3 Magpul® AR-15 Furniture Kit - MOE®, Mid-Length 4 Magpul® AR-15 Furniture Kit - MOE®, Mid-Length 5

    Magpul® AR-15 Furniture Kit - MOE®, Mid-Length

    If you specifically have an M4-style or CAR-15-style AR-15 with all stock parts but your gas system is mid-length, but you still want upgrades, then this is for you. You can get several comfort and quality-of-life upgrades all in one place with this...

    $90.10
  • Gamma 556 Muzzle Brake by Aero Precision Gamma 556 Muzzle Brake by Aero Precision

    Gamma 556 Muzzle Brake by Aero Precision

    If quick follow-up shots from your AR-15 are what counts, you'll want either a muzzle brake to control recoil or a compensator to reduce muzzle rise. The good people at Aero Precision see the need to have both, but in one single device. This is the Gamma...

    $69.99
  • RED 5.56 Muzzle Brake by Fortis Manufacturing Inc. RED 5.56 Muzzle Brake by Fortis Manufacturing Inc.

    RED 5.56 Muzzle Brake by Fortis Manufacturing Inc.

    If you frequently put a lot of rounds downrange with your .223/5.56 AR and quickly, you need to squeeze as much control out of your rifle as possible. A good way to do this is to replace your mil-spec A2 flash hider with a muzzle brake. For exactly this...

    $89.99
  • 10-m-lok-free-floating-handguard-1 10-m-lok-free-floating-handguard-2 10-m-lok-free-floating-handguard-3 10-m-lok-free-floating-handguard-4 10-m-lok-free-floating-handguard-5

    10" M-Lok Free-Floating Handguard

    Need some "front end" to finish off that AR build of yours? How 'bout 10 inches of it? Put the finishing touches on your standard-sized AR-15 with this handguard. You get enough rail space on top to mount your backup sights or even optics. The M-Lok...

    $49.99
  • Tactical Charging Handle for AR-10 / LR-308 .308 Tactical Charging Handle for AR-10 / LR-308 .308 Tactical Charging Handle for AR-10 / LR-308 .308

    Tactical Charging Handle for AR-10 / LR-308 .308

    It's simple: you need a charging handle to put your .308 sized AR rifle into battery, whether it's an AR-10 (Colt's proprietary design) or LR-308 (the other 90% of all .308 sized AR rifles out there). Here's one. This is a standard .308 sized charging...

    $14.99
  • Muzzle Brake for AR Rifles by Midwest Industries

    Muzzle Brake for AR Rifles by Midwest Industries

    If managing recoil for your AR is your main concern, you'll want a muzzle brake that mitigates it as much as possible. The Midwest Industries Muzzle Brake does. Throw compensation and hiding your flash to the wind, and get as much recoil reduction as...

    $39.99
  • .223/5.56 RA-701 Compensator by Rise Armament .223/5.56 RA-701 Compensator by Rise Armament

    .223/5.56 RA-701 Compensator by Rise Armament

    If you have need of controlling recoil, you're going to want to replace that standard mil-spec flash hider on the end of your .223 or 5.56mm AR-15 with a compensator. If you're looking to install one and not have to worry about how well it'll hold up...

    $89.99
  • 5.56 Muzzle Brake by CMMG 5.56 Muzzle Brake by CMMG 5.56 Muzzle Brake by CMMG

    CMMG Muzzle Brake - 5.56

    If you're trying to get better control from your .223/5.56 rifle's barrel, it may be a good idea to swap out the A2 flash hider that probably came with your rifle with a compensator. A great option for you is the CMMG 5.56 Muzzle Brake. This particular...

    $69.99
  • Delta 556 Muzzle Brake by Aero Precision Delta 556 Muzzle Brake by Aero Precision Delta 556 Muzzle Brake by Aero Precision

    Delta 556 Muzzle Brake by Aero Precision

    On the spectrum from low recoil to less muzzle rise to less concussive blast and flash, you've decided your AR's recoil doesn't need to be lessened. Consequently, you've decided to take the edge off the explosion you hear each time you send a round...

    $54.99
  • R2 5.56 Muzzle Brake by Spike's Tactical R2 5.56 Muzzle Brake by Spike's Tactical R2 5.56 Muzzle Brake by Spike's Tactical

    R2 5.56 Muzzle Brake by Spike's Tactical

    Spike's Tactical understands the need to reduce felt recoil for your AR-15. Sure the AR might not kick a lot to begin with, but for you that have AR pistols and builds with generally shorter barrels, the R2 from Spike's Tactical will perform extremely...

    $74.99
  • King Comp .223/5.56 Compensator by Strike Industries King Comp .223/5.56 Compensator by Strike Industries King Comp .223/5.56 Compensator by Strike Industries

    King Comp .223/5.56 Compensator by Strike Industries

    If the goal is to stay on target when taking follow-up shots then, it's crucial to keep your barrel level between trigger squeezes. To give yourself a little help in that department, you can swap out your mil-spec A2 flash hider with a compensator...

    $44.99
  • 2-Chamber Muzzle Brake by Midwest Industries 2-Chamber Muzzle Brake by Midwest Industries

    2-Chamber Muzzle Brake by Midwest Industries

    The AR-15's A2 "birdcage" flash hider was created with a great design. It expells gas, usually in five directions, pointed in several upward and side-facing paths. It keeps your visual path to the target flash free, so you can quickly get back on target...

    $49.99
  • Magpul M-LOK® QD Sling Mount Magpul M-LOK® QD Sling Mount 2 Magpul M-LOK® QD Sling Mount 3 Magpul M-LOK® QD Sling Mount 4 Magpul M-LOK® QD Sling Mount 5

    Magpul M-LOK® QD Sling Mount

    The Magpul M-LOK QD Sling Mount is manufactured from a durable Mil-Spec anodized aluminum, that is a lightweight anti-swivel design offering beveled edges to prevent snagging and rotation. The M-LOK QD Sling Mount provides a forward attachment point...

    $19.95
  • Magpul RSA® QD - Rail Sling Attachment QD Magpul RSA® QD - Rail Sling Attachment QD 2 Magpul RSA® QD - Rail Sling Attachment QD 3 Magpul RSA® QD - Rail Sling Attachment QD 4 Magpul RSA® QD - Rail Sling Attachment QD 5

    Magpul RSA® QD - Rail Sling Attachment QD

    The Magpul RSA QD is a slim two point sling design, angled at a position for optimal comfort and easy access to the push-button. The RSA QD provides a forward attachment point compatible with push-button QD slings and the Magpul MS4 sling...

    $29.95
36 of 48 Items

Your #1 source for all quality, mil-spec AR upper parts.

Piecing together a custom, precision-capable AR upper is one of the fun parts of becoming an AR-15 owner. We've got all the components you need to make that happen: From M4-type barrels to F/A bolt carriers, from lightweight handguards to oversized charge handles, you'll find everything you need to assemble any 5.56, .223, or other caliber upper assembly to pair with your new or existing lower.

 Pre-Built Upper Assemblies Available

We're excited to provide some of the most accurate, reliable, and affordable AR upper assemblies on the market. Grab our custom .223 Wylde setup, which includes a free-float M-LOK handguard and 16", 1:8 twist barrel that's capable of sub-MOA accuracy with any 5.56 or .223 load. All uppers include an M16-type bolt carrier group with a mil-spec 7075-T6 forged charging handle.

 Improve Accuracy With a Free-Float Handguard

Two-piece handguards are cheap and effective, but they can hinder accuracy -- especially if you're rocking one of those old-school "FSB" front sight posts. It's time to upgrade to a proper, low-profile gas block and a quality, one-piece, free-float handguard. You'll shed some serious weight and free up your barrel from carrying the load, resulting in better accuracy.

Plus, you'll get to enjoy the M-LOK rail system, which also reduces weight and provides better ergonomics than the typical Picatinny quad rail. Each of our free-float guards are custom-made, sporting a hardcoat anodized finish and weighing one pound or less! Barrel nuts are included for an easy installation.

Build Your Custom AR Upper From Scratch

Want to make a true, one-off upper assembly that's designed and built to your exact specifications? Do it yourself, it's easier (and more affordable) than you think: We've got quality mil-spec, M4-type stripped upper receivers available, plus quality 4150 CMV barrels. Grab a BCG and charging handle, pair it up with one of those nice new handguards, and you're ready.

Here's our easy-to-follow guide on how to assemble your upper piece by piece.

Finish Your Build With a Compensator, Brake, or Flash Hider

Virtually every AR barrel comes with standard 1/2x28 pitch or 5/8x24 pitch threads, so it only makes sense to finish (or upgrade) your AR's upper with a quality muzzle device that reduces felt recoil and improves control. Whether you're gunning for the traditional "bird cage" flash hider or you want to throw some flames and tighten up your groups with a proper brake or comp, we've got you covered.

Your custom AR upper awaits.


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