A premium 300 blackout suppressor host, the BRN180 10" features an ultra reliable adjustable piston system to confidently run subsonic & supersonic ammo.

At home in the hog brush or deer, the BRN180 chambered in 350 Legend offers a feature not possible on any other ARs chambered in 350 - a larger, monolithic feed ramps ensures reliable feeding across all factory loads taking reliability concerns out of the equation!

Our popular BRN-180S® complete upper receiver comes with a Primary Weapon Systems FRC Flash Hider permanently pinned and welded onto the barrel to meet the National Firearms Act's (NFA) requirement for a minimum 16" barrel length. This gives you the shortest-possible barrel without having to apply to the ATF (and pay $200) to register your rifle as an SBR. You actually get TWO benefits because this PWS flash hider also serves as a quick-attach mount for sound suppressors that use the Rearden, Atlas, and Plan B mounting interfaces.

BRN-180® Upper Receiver Group Gen2 – Reliable Piston System Made Even More Versatile. 16" 223 wylde variant is the "do-all" workhorse of the lineup featuring a lightweight barrel and adjustable gas system capable of handling anything you can throw at it!

If you're wanting to build an ultra compact 223 with folding brace, this BRN180 is for you. Features a 10.5" barrel chambered in 223 Wylde with a 2 position gas system optimized for both suppressed & unsurpressed.

Looking for the best deal this Black Friday? Pick up the BRN-4 kit, assemble it yourself and take it easier on your wallet!

The Brownells BRN4 Assembled Uppers come ready for you preferred HK416 rail to be installed. Available in multiple barrel lengths and profiles.

Complete with a Midwest Industries HK416 rail, this BRN4 upper assembly is ready to snap onto your favorite AR lower and run!

Make your BRN4 more compact for easier storage and travel with the Law Tactical Folding Stock Adapter. A proven track record of ruggedness & reliability, the Law Folder won't disappoint!

SCT Frames for Glock 19, 17 & 43 feature enhanced ergonomics for superior control & shootability. Paired with the Brownells Complete Slide Assembly, you will have a custom level handgun for as low as $269.98!

Whether you're looking to co-witness an optic, sight over a suppressor (or both), the Brownells tall sights will get the job done. Available in 3 different heights and an option for tritium fronts, these sights offer unbeatable value!

Every good pistol needs a reliable light, and the Streamlight TLR-1 HL fills that role perfectly. Take advantage of Black Friday pricing while supplies last!

Take advantage of bundle pricing in these handy 3 packs of Glock OEM mags, stock up & save big! Nothing beats the reliability of factory Glock mags so don't hesitate.

The Brownells BRN-22 Receiver is ready to be the foundation of your custom rimfire rifle build. Each BRN-22 receiver is precision-machined from 6061 aluminum billet to exacting tolerances. Why machined instead of forged, like most commercial receivers? All you need to do is look inside at the smooth, clean interior to realize that a machined receiver can be held to much tighter tolerances for a precise fit with other parts.

The BRN-22 Takedown is fully compatible with the ever-popular Ruger® 10/22®Takedown, so you can choose from the vast array of barrels, stocks, triggers, and other custom components for the 10/22® platform. Each BRN-22 Takedown receiver is precision-machined from 6061 aluminum billet to exacting tolerances.

The Brownells BRN-22® Bolt Assembly is a perfect match if you are looking to complete a BRN-22™ receiver or replace a 10/22® bolt in an existing gun. A drop-in ready, precision machined billet stainless steel part, the assembly includes an extractor and a hardened firing pin, and is available in a matte stainless steel, black nitride, OR Tin finish.

This 1-6x24 Rifle Scope is assembled for Brownells in Japan, using glass with multicoated lenses and a glass etched reticle. Illuminated Donut reticle ideal for simple, quick acquisition. Package includes 30mm cantilever 1.4" mount ready to mount right out of the box!

With the classic 20 inch Government profile 5.56x45mm NATO barrel, the BRN-16A4 has an instantly recognizable appearance. The 20 inch barrel has a chrome bore and chamber, with 1-7 twist, perfect for M855 62 grain or heavier bullets. The muzzle is capped by the great performing M16A2 flash hider. The "F" Marked front sight base has the correct A2 square post, bayonet lug, sling swivel and triangle handguard cap.

The BRN16A2 features the correct components you're seeking in a M16A2 build. The forged upper receiver itself is the classic M16A2 style, with the robust and incredibly adjustable A2 rear sight assembly.The elevation drum can be adjusted from 300 to 800 meters (zero at 25m for 300m). This upper receiver does not have M4 feed ramps, just like the original A2. The included bolt carrier group has a phosphate finish with chrome bore and gas key interior.

We actually tracked down the original company that manufactured the Colt™ AR-15 optics of the 1970s and asked them to build a new one for us as close to the original as possible - right down the yellow inspection stickers. The Retro 4x Optic has updated technology under the hood, with modern lenses and construction. The result is a scope that looks just like the original but has optical clarity and performance that are head and shoulders above it.

Based on the unique early carbine configurations, these GAU-5A Upper Receivers are ready for your next Retro build. The muzzle of the GAU-5A Upper Receiver, is capped by the classic XM177/GAU-5 moderator inspired flash hider, with ports around its radius.

The Daniel Defense MK18 Upper Receiver Group features the railed forend Daniel Defense currently provides to USSOCOM and a 10.3” Cold Hammer Forged Barrel. The MK18 Rail Interface System (RIS II) features the Bolt-Up System has been rigorously tested prior to fielding by USSOCOM. The 10.3” barrel is the same length in use for the MK18 upper most often used for CQB operations.

The Daniel Defense M4A1 SOCOM Block II Upper Receiver has been designed for those looking to match the specs and performance on the M4A1 SOCOM Block II carbines used by troops during Operations Iraqi Freedom and Enduring Freedom. Now available in an FSP variant.

Adding to their extremely successful line of stripped MK18 & M4A1 uppers, these SOCOM Block II inspired uppers feature the new RISIII rail boasting the most robust and rugged mounting system available!

Law Tactical's steel adapter enables installation of a folding stock on any AR-15 to create a smaller-profile rifle for easy deployment from a vehicle or transport. Works with standard gas impingement OR gas piston system. Compatible with all standard bolt carrier groups or, add the ability to shoot folder with the Law Tactical ARIC BCG!