AR15 Parts
Gas & Brass Armory is your trusted source for AR-15 parts in Brandon, FL. Whether you're upgrading your current rifle or building a custom AR from the ground up, we stock high-quality components from top manufacturers like Aero Precision, Magpul, Radian Weapons, BCM, Geissele, and more. Shop complete uppers, stripped lowers, triggers, handguards, buffer kits, barrels, and everything you need for your next AR build. Our expert staff is here to help you build it right the first time.
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FMK AR15 POLYMER LOWER RECEIVER BB
FMK Firearms
MSRP: $44.79$33.00Manufactured in the USA of a high impact proprietary composite polymer. This state of the art polymer allows for superior strength, unmatched durability and is extremely lightweight. The Ar1 eXtreme is by far the strongest composite polymer lower on the...MSRP: $44.79$33.00 -
FAXON RECEIVER KIT FOR 10/22 BLK
Faxon Firearms
MSRP: $238.28$171.00The Faxon 10/22 Receiver Kit provides a quick and easy upgrade of your Ruger 10/22, or serves as the cornerstone for your next 10/22 rifle build. Faxon 10/22 Receivers are compatible with all Ruger OEM 10/22 non-takedown components, all Faxon Rimfire...MSRP: $238.28$171.00 -
BCM LOWER GROUP W/BCM STK MOD0 FDE
Bravo Company
MSRP: $603.75$525.00Exacting construction and rigorous durability are the standard for every weapon system that comes off the line at BCM. BCM Professional Grade Weaponry are hard use tools, built to perform in combat where unfailing performance is the only standard for men...MSRP: $603.75$525.00 -
BCM GUNFIGHTER LOWER GROUP SPMD BLK
Bravo Company
MSRP: $603.75$525.00The Bravo Company Manufacturing Complete AR-15 Lower Receiver is built to Mil-Spec ensuring compatibility with a wide range of parts and accessories. This AR-15 lower comes fully assembled and ready to attach to any Mil-Spec complete upper. The receiver...MSRP: $603.75$525.00 -
BCM LOWER GROUP W/BCM STK MOD 0 BLK
Bravo Company
MSRP: $603.75$525.00BCM rifles and carbines are some of the highest quality modern sporting rifles on the market today. Whether it's competition, defense, hunting or duty, BCM offers a rifle for the task at hand.MANUFACTURER: Bravo CompanyMPN: LRG-STK-MOD-0-BLKMODEL:...MSRP: $603.75$525.00 -
BOOTLEG AMBI RECEIVER SET AR 15 BLK
Bootleg
MSRP: $574.94$460.00Machined out of 7075 Billet aluminum and designed to match their newly released Upper Receiver, The Smuggler is their exciting first step into Lower receivers. Weighing in at 9.85 ounces and MIL-SPEC Hard Anodized this lower receiver will stand the test...MSRP: $574.94$460.00 -
BOOTLEG SMUGGLER AMBI LOWER BLK
Bootleg
MSRP: $324.94$260.00Machined out of 7075 Billet aluminum and designed to match their newly released Upper Receiver, The Smuggler is their exciting first step into Lower receivers. Weighing in at 9.85 ounces and MIL-SPEC Hard Anodized this lower receiver will stand the test...MSRP: $324.94$260.00 -
BALLISTIC ENHCD AR 15 LOWER RCVR
Ballistic Advantage
MSRP: $195.99$140.00The Ballistic Advantage AR15 Enhanced Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades this...MSRP: $195.99$140.00 -
Out of stock
AERO M4E1 STRIPPED LOWER FDE
Aero Precision
MSRP: $223.99$160.00The M4E1 Lower Receiver delivers billet aesthetics in a forged package. This custom designed enhanced forging is machined from 7075-T6 Aluminum and compatible with all mil-spec AR15 parts. Aside from the visual upgrades this custom engineered design...MSRP: $223.99$160.00 -
PWS RATCHET LCK CASTLE NUT/END PLATE
Primary Weapons Systems
MSRP: $55.93$40.00The Ratchet Lock Castle Nut End Plate set works with mil-spec OR commercial buffer tubes and eliminates the need for staking. A quick upgrade to any rifle build, the Ratchet Lock Castle Nut End Plate features a QD mount and easy installation with any...MSRP: $55.93$40.00 -
SOLGW E INDIA KIT V2 5.56 14.5 BLK
Sons of Liberty Gun Works
MSRP: $593.75$475.00The East India Starter Kit is a building block for any build you wish to do. Properly assembled with a USGI barrel nut, this is a great way to finish assembling your own upper without having to know how to install a barrel and gas block.MANUFACTURER:...MSRP: $593.75$475.00 -
SOLGW L89 BS V2 5.56 14.5 HUX BLK
Sons of Liberty Gun Works
MSRP: $1,476.06$1,307.00The L89BS (Broadsword) uppers include 7-sided L89 rails with Titanium barrel nuts and integral QD cups, BROADSWORD upper receivers, 4150CMV barrels, low profile gas blocks, and include the muzzle device. Bolt Carrier Groups and Charging Handles are NOT...MSRP: $1,476.06$1,307.00