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36 of 118 Items
  • Sale
    Mil-Spec AR15 Lower Parts Kit (w/ Hammer and Trigger)

    Mil-Spec AR15 Lower Parts Kit (w/ Hammer and Trigger)

    Complete AR-15 Lower Parts Kit with Pistol Grip This AR-15 Lower Parts Kit includes all components required for assembling your AR-15 stripped lower receiver: Bolt Catch Bolt Catch Plunger Bolt Catch Roll Pin Bolt Catch Spring Buffer Retainer Buffer...

    Was: $49.99
    Now: $39.99
  • JMT Single Stage Drop In 3.5-4 Ib Trigger - Saber JMT Single Stage Drop In 3.5-4 Ib Trigger - Saber 2 JMT Single Stage Drop In 3.5-4 Ib Trigger - Saber 3 JMT Single Stage Drop In 3.5-4 Ib Trigger - Saber 4

    JMT Single Stage Drop-In 3.5-4 Ib Trigger - Saber

    If you're going for "easy yet effective" in terms of simple upgrades for your AR to improve its performance, and you're thinking about a new trigger, then stop here and read this. Check out the Saber. It's JMT's Single Stage Drop-In 3.5-4 lb Trigger, and...

    $99.99
  • Sale
    LR-308/AR-10 Lower Parts Kit (w/ Hammer and Trigger)

    LR-308/AR-10 Lower Parts Kit (w/ Hammer and Trigger)

    NOTE: Due to availability limitations and supply chain constraints, slight variations of the trigger and hammer finsh (stainless or black) may occur.  Acquire an LR-308 trigger that suffers no creep, take-up, or over-travel. Acquire an...

    Was: $69.99
    Now: $59.99
  • Sale
    ar15 bolt carrier group - in stock ar15 bolt carrier group - in stock

    AR-15 5.56mm NATO Bolt Carrier Group - Full Auto Profile

    Get a solid piece of work to use as the guts of your AR-15 with this bolt carrier group.  It works with .223, 5.56mm, and .300BLK calibers. Made of mil-spec Carpenter 158 steel, this BCG is high-pressure tested (HP) , and magnetic particle inspected...

    Was: $79.99
    Now: $69.99
  • Sale
    Carbine Stock & Buffer Tube Assembly, Adjustable Carbine Stock & Buffer Tube Assembly, Adjustable Carbine Stock & Buffer Tube Assembly, Adjustable Carbine Stock & Buffer Tube Assembly, Adjustable

    Carbine Stock & Buffer Tube Assembly, Adjustable

    Get your AR-15's rear end done in one shot with this bundle.  You get a buffer tube assembly complete with the buffer and necessary hardware and a standard butt stock. Shipping Restrictions   We cannot ship certain parts and accessories to...

    MSRP: $69.99
    Was: $39.99
    Now: $24.99
  • Sale
    mil-spec-buffer-tube-assembly-ar-15-1

    Mil-Spec Buffer Tube Assembly - AR-15

    The AR-15 Mil-Spec Buffer Tube Assembly is manufactured out of 6061-T aluminum, making this product very lightweight and durable. The 3-ounce buffer and carbine coated spring provide a smooth and reliable function. The mil-spec six position receiver...

    Was: $24.99
    Now: $19.99
  • Magpul Rail Vertical Grip - RVG®

    Magpul RVG® - Rail Vertical Grip

    The Magpul RVG is a traditional vertical grip, manufactured out of a durable polymer that is lightweight and has a low profile. The aggressive TSP texture allows for more control in any harsh climate. The RVG is designed to be used with the 1913...

    $24.95
  • KAK Missing Parts Kit - AR15 LPK

    KAK Missing Parts Kit - AR15 LPK

    The Kak Industry AR15 Lower Parts Kit is perfect for any parts that may be lost, need to be replaced, or for your next custom build. LPK includes, a buffer retainer (1), takedown and pivot detents (4 each), selector detent (2), selector and ejector...

    $9.99
  • AR10/AR15 Carbine Length Gas Tube

    AR10/AR15 Carbine Length Gas Tube

    If your AR-15, LR-308, or AR-10 is gas-operated, it needs a gas tube to cycle. This is the right 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 & AR10...

    $12.99
  • Aero Precision AR15/AR10 Enhanced Carbine Buffer Tube Aero Precision AR15/AR10 Enhanced Carbine Buffer Tube-2 Aero Precision AR15/AR10 Enhanced Carbine Buffer Tube-3 Aero Precision AR15/AR10 Enhanced Carbine Buffer Tube-4 Aero Precision AR15/AR10 Enhanced Carbine Buffer Tube-5

    Aero Precision AR15/AR10 Enhanced Carbine Buffer Tube

    You may consider the buffer tube to be nothing flashy or interesting, because it's simply just "one of the parts" you need to finish a working AR-15. And true, you need a buffer tube, but why can't it also be true that having the right one can enhance...

    $39.99
  • MOE+® EPT SBA3 Lower Build KIt

    MOE+® EPT SBA3 Lower Build KIt

    If you're planning an AR-15 pistol build, we can help you with the lower half of your rifle while keeping you legal at the same time. To assist, we've put together this MOE+® EPT SBA3 Lower Build Kit. It includes everything you need to finish the...

    $219.99
  • Magpul® MOE® Carbine Stock & Buffer Tube Assembly Magpul® MOE® Carbine Stock & Buffer Tube Assembly 2 Magpul® MOE® Carbine Stock & Buffer Tube Assembly 3 Magpul® MOE® Carbine Stock & Buffer Tube Assembly 4 Magpul® MOE® Carbine Stock & Buffer Tube Assembly 5

    Magpul® MOE® Carbine Stock & Buffer Tube Assembly

    Get all the components you need to finish off the quieter end of your AR in one easy package. This bundle we've thrown together includes our buffer tube assembly, but that's not all. The bonus is that we've added in a Magpul® MOE® Carbine Stock...

    $59.99
  • gen-3-bBarrel-glock-19-compatible-1 gen-3-bBarrel-glock-19-compatible-2 gen-3-bBarrel-glock-19-compatible-3 gen-3-bBarrel-glock-19-compatible-4 gen-3-bBarrel-glock-19-compatible-5

    Glock® 17 Compatible Barrel - Gen 3

    Keep your gen 3 Glock® 17 or mid-sized Glock® compatible 17 pistol in good working order with this G17 barrel. Made with proper US craftsmanship, this Gen3 barrel boasts the highest level of quality and accuracy you’ll ever find in any...

    $69.99
  • Spike's Tactical - Lower Parts Kit AR-308

    Spike's Tactical - Lower Parts Kit AR-308

    The Spike's Tactical AR-308 Lower Parts Kit has a great fit and finish along with a military grade design that is built for longevity. This parts kit is designed to be used with Spike's Tactical's forged sets and may not be compatible with any other...

    $79.99
  • gen-3-bBarrel-glock-19-compatible-1 gen-3-bBarrel-glock-19-compatible-2 gen-3-bBarrel-glock-19-compatible-3 gen-3-bBarrel-glock-19-compatible-4 gen-3-bBarrel-glock-19-compatible-5

    Glock® 19 Compatible Barrel - Gen 1-4

    Keep your gen 1-4 Glock® 19 or mid-sized Glock® compatible 19 pistol in good working order with this G19 barrel. Made with proper US craftsmanship, this Gen 1-4 barrel boasts the highest level of quality and accuracy you’ll ever find in any...

    $69.99
  • Magpul MS4® Dual QD Sling GEN2 Magpul MS4® Dual QD Sling GEN2 2 Magpul MS4® Dual QD Sling GEN2 3 Magpul MS4® Dual QD Sling GEN2 4 Magpul MS4® Dual QD Sling GEN2 5

    Magpul MS4® Dual QD Sling GEN2

    The Magpul MS4 Dual QD Sling GEN2 includes two heavy duty push-button QD swivels and a slim MS1 slider for secure sling adjustments. The MS4 has the ability to switch with ease between a one-point or two-point sling thanks to the custom steel connection...

    $74.99
  • Magpul MOE® Grip - AR15/M4

    Magpul MOE® Grip - AR15/M4

    Let's face the truth. The AR-15 for how modular it is and how it can adapt to any situation, falls short in one key area: the grip is bad. Like bad bad. You just can't hold the damned thing the right way and be comfortable at the same time. The angle is...

    $19.95
  • ar-15-fully-stripped-upper-receiver-1 ar-15-fully-stripped-upper-receiver-2 ar-15-fully-stripped-upper-receiver-3 ar-15-fully-stripped-upper-receiver-4 ar-15-fully-stripped-upper-receiver-5

    AR-15 Fully Stripped Upper Receiver

    This stripped upper receiver is made from 6061 T6 aluminum and conforms to all mil-spec measurements. Being the A3 type, it also features a "flat top." This means instead of the old-school carry handle that the A2 style used to have, you get a...

    $54.99
  • 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" 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
  • Premium AR-15 Lower Parts Kit Premium AR-15 Lower Parts Kit 2 Premium AR-15 Lower Parts Kit 3 Premium AR-15 Lower Parts Kit 4

    Premium AR-15 Lower Parts Kit

    This kit contains all the necessary internal parts to finish off your lower receiver.  The difference between this and other LPKs out there is that this one has been upgraded with a Magpul MOE grip and trigger guard from the standard varieties. This...

    $63.99
  • 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 AR that's gas-operated and doesn't use a piston system needs a gas block of some type to cycle between shots. If you're building one of those awesome old-school or retro style ARs, yours may have a fixed front sight or some folding variant that...

    $19.99
  • 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 normal (and the easiest) route with the muzzle end of your .223 or 5.56mm chambered AR by adding a muzzle device, you'll need a crush washer. This is the right one needed. You just slide it onto the threading of your barrel,...

    $1.49
  • 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 struggle. If you're starting with just individual parts, you need to attach the C-clamp onto the rod without launching the damned thing across the room and never seeing it again. Then you...

    $5.99
  • Magpul® MOE® AR-15 Build Kit Magpul® MOE® AR-15 Build Kit 2 Magpul® MOE® AR-15 Build Kit 3 Magpul® MOE® AR-15 Build Kit 4 Magpul® MOE® AR-15 Build Kit 5

    Magpul® MOE® AR-15 Lower Build Kit

    Imagine being able to complete your whole lower assembly with a single kit. Now, stop imagining and read this. This kit will do exactly that; it'll turn your stripped lower receiver into a fully functional lower assembly. Yup. That the whole damned...

    $119.99
  • Midwest Industries Muzzle Brake - AR Rifles

    Midwest Industries Muzzle Brake - AR Rifles

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

    $39.99
36 of 118 Items

Quality AR parts for your black rifle or pistol build.

What good is the AR platform if you don't have access to all the parts and custom components you need to outfit your rifle or pistol? That's why we've got a full catalogue of quality AR parts that fit just about every caliber and configuration you could build. Whether you need a 9mm conversion kit, want an upgraded trigger, or you're starting your build from scratch, you'll find just about everything you need for your new receivers right here.

Mil-Spec Lower Parts Kits

The lower parts kit is the heart of the AR build: It contains the hammer, trigger, and innards that make your receiver function with your upper assembly and bolt. Without a good parts kit, you have an inaccurate and unreliable AR-15. We've got quality mil-spec LPKs that include all the parts you need to assemble your lower with confidence, including parts kits for 5.56/.223, and LR-308 builds to include 6.5 Creedmoor.

Lightweight AR Handguards and Rail Systems

The handguard you pick for your AR can make or break a build: Go with something heavy, clunky and uncomfortable and you'll lose accuracy and comfort. We've developed custom, lightweight handguards for your AR-15 that boats averages weights of 1 pound or less, with rock-solid single-piece designs that are free-float with an easy installation.

AR Accessories for Extra Customization

The AR platform has dozens of accessories that let you set your rifle or pistol apart from the pack. Whether it's a single-point sling, double-mag holder, new buttstock or foregrip, we've partnered with top AR accessory makes to offer up all the bits you need to outfit your new build.

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.