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  • UTG Ultra Slim Angled M-LOK Foregrip, Matte Black UTG Ultra Slim Angled M-LOK Foregrip, Matte Black-2 UTG Ultra Slim Angled M-LOK Foregrip, Matte Black-3 UTG Ultra Slim Angled M-LOK Foregrip, Matte Black-4 UTG Ultra Slim Angled M-LOK Foregrip, Matte Black-5

    UTG Ultra Slim Angled M-LOK Foregrip, Matte Black

    The UTG Ultra Slim Angled MLOK Foregrip is constructed from 6061-T6 Aluminum and has been anodized with a matte black finish. It's compatible with M-LOK style rails, shrouds, and hand guards. This angled foregrip provides a very comfortable, forward grip...

    $29.99
  • Gamma 7.62 Muzzle Brake by Aero Precision Gamma 7.62 Muzzle Brake by Aero Precision Gamma 7.62 Muzzle Brake by Aero Precision

    Gamma 7.62 Muzzle Brake by Aero Precision

    When being quick with follow-up shots from your LR-308 matters most, you'll want either a muzzle brake to control recoil or a compensator to reduce muzzle rise. The good people at Aero Precision decided you can have both in one single device. This is the...

    $79.99
  • .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
  • 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
  • PRS® GEN3 Precision-Adjustable Stock by Magpul

    Magpul PRS® GEN3 Precision-Adjustable Stock

    The Magpul PRS GEN3 Precision has Melonite coated steel shafts that protects against corrosion and wear, offering the ability to adjust the length of pull and the cheek piece via aluminum detent knobs. This stock includes a non-slip rubber butt-pad that...

    $254.95
  • Magpul QD Sling Swivel

    Magpul QD Sling Swivel

    The Magpul QD Sling Swivel is a quick detachable manganese-phosphate finished steel design, that is compatible with any push-button 1-1/4 inch webbing for QD sling attachment points, including the two-point MS1 Sling.  Additional...

    $14.95

Quality, American-made AR-15 parts for customizing your rifle or pistol.

Part of the fun of owning an AR-15 is the ability to easily customize it. Whether it's adding a new foregrip or trigger, replacing your bulky handguard with a lightweight unit, slappin' on a sling, or replacing that basic A2 flash hider with a proper compensator or flash hider, we've got you covered with quality, US-made components.

 

New to building ARs? Check out our complete "how-to" and parts guide!

Mil-Spec and Upgraded LPKs

The most important part of assembling your AR-15 is the installation of the lower parts kit. That's why we've carefully selected a quality catalogue of LPKs that satisfy mil-spec fitment - allowing them to work with all our available 80% lowers - and upgraded lower parts with enhanced grips and custom, high-performance coatings that improve trigger feel and function.

Complete Lower Build Kits

Got a barreled upper assembly that you're ready to put to work? We have the critical other half your custom AR build available in our complete lower build kits. These units ship with parts kits, a buffer assembly and stock or brace (for rifles and pistols) and an 80% lower that you get to fabricate to make a truly custom, from-scratch stripped lower receiver.

AR Stocks and Pistol Braces

Getting a good cheek weld and having a lil' extra comfort behind the gun can help make shooting your AR rifle or pistol even better. We've sourced some of the most popular AR stock and brace options for any setup, all available at a great price. Need a conventional six-position buttstock? Grab an O.G. M4-type stock for only $10! Need to outfit your lower receiver with a full buffer assembly, too? Check out our available stock an brace kits.

Upgraded Pistol Grips

Let's face it: The AR's stock pistol grip gets the job done, but it's outdated. New grips with better angles and materials can make a world of difference in how you maneuver and aim with your black rifle. We've got some of the most popular options from Magpul and UTG, with over-molded grips also available for large hands and better comfort. Check 'em out here.

AR Slings and Sling Mounts

Most new AR builders are so excited to part together their new rifle or pistol, they forget one of the most important accessories: A proper sling. We've got comfortable, battle-ready options from Magpul and others, with easy-to-install sling mounts and plates that make hanging your AR off your sling - and getting it into the high-ready position - natural and smooth.

Other AR-15 Accessories

 Looking for that one way to improve your AR like nobody else? That one accessory that makes your rifle or pistol shoot better, provide easier control, or simply more mag access? Check out our AR accessories. We've got some one-off upgrades like 9mm conversion blocks, double mag holders, the infamous B.A.D. lever for quicker mag swaps, and quality rifle cases.


DISCLAIMER: If you are new to the world of DIY gun building, you likely have a lot of questions and rightfully so. It’s an area that has a lot of questions that, without the correct answers, could have some serious implications. At GunBuilders.com, we are by no means providing this content on our website to serve as legal advice or legal counsel. We encourage each and every builder to perform their own research around their respective State laws as well as educating themselves on the Federal laws. When performing your own research, please be sure that you are getting your information from a reliable source.

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.