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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Out of stock
GEISSELE SUPER GAS BLOCK
Geissele Automatics
MSRP: $114.24$82.00The Geissele Super Gas Block is a low profile gas block, designed to fit under most free floating handguards. Precision investment cast from 17-4 precipitation hardening stainless steel, the gas block provides corrosion resistance and strength to...MSRP: $114.24$82.00 -
Out of stock
FORTIS MAG CATCH & BUTTON COMBO BLK
Fortis Manufacturing Inc.
MSRP: $33.18$24.00The Fortis Billet Mag Catch & Button is a superior alternative to the ones found in a mil-spec lower parts kit. Easily installs in seconds and instantly upgrades your rifle. This upgrade is CNC machined from a solid piece of 6061-T6 aircraft grade...MSRP: $33.18$24.00 -
Out of stock
FORTIS SS FIFTY AMBI SFTY SLCTR BLK
Fortis Manufacturing Inc.
MSRP: $53.13$38.00High quality components and precise manufacturing make Fortis parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.MANUFACTURER: Fortis...MSRP: $53.13$38.00 -
Out of stock
FORTIS K2 ENHANCD AR15 END PLATE BLK
Fortis Manufacturing Inc.
MSRP: $59.78$43.00When designing their new Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With two lockdown systems (K1 & K2), Fortis has engineered a...MSRP: $59.78$43.00 -
Out of stock
FORTIS SLS FIFTY AMBI SFTY SLCTR FDE
Fortis Manufacturing Inc.
MSRP: $53.13$38.00When designing the new Fortis Super Lean Sport (SLS) FIFTY, Fortis made sure their brand's innovation, intent and quality were evident in every aspect of the design. While most AR safety selectors in the market today rely on standard socket/torx screws,...MSRP: $53.13$38.00 -
Out of stock
FORTIS K2 ENHANCD AR15 END PLATE FDE
Fortis Manufacturing Inc.
MSRP: $59.78$43.00When designing their new Lightweight Enhanced (LE) Castle Nut & End Plate System, Fortis came up with two systems that virtually eliminates the risk of your castle nut ever backing out. With two lockdown systems (K1 & K2), Fortis has engineered a...MSRP: $59.78$43.00 -
Out of stock
FORTIS END PLATE & CASTLE NUT
Fortis Manufacturing Inc.
MSRP: $32.84$20.00The Fortis Standard Castle Nut is manufactured from a solid piece of billet aircraft grade aluminum that offers a significant weight reduction to your castle nut. If you're trying to save ounces, this is a great way, but without sacrificing durability...MSRP: $32.84$20.00 -
Out of stock
FORTIS BILLET DUST COVER CF FDE
Fortis Manufacturing Inc.
MSRP: $39.83$29.00The Fortis Billet Dust Cover is manufactured from a solid piece of aircraft grade aluminum. This ensures overall durability and reliability vs other polymer versions. Easy to install and upgrade your existing ejection port dust cover on your .223/556...MSRP: $39.83$29.00 -
Out of stock
FORTIS BILLET DUST COVER STD BLACK
Fortis Manufacturing Inc.
MSRP: $33.18$24.00The Fortis Billet Dust Cover is manufactured from a solid piece of aircraft grade aluminum. This ensures overall durability and reliability vs other polymer versions. Easy to install and upgrade your existing ejection port dust cover on your .223/556...MSRP: $33.18$24.00 -
ERGO LOW PROFILE ADJ GAS BLOCK .750
Ergo Grip
MSRP: $60.55$0.00The .750" Low-Pro Adjustable Gas Block is constructed of 4140 chromoly steel and will fit under Superlite Rail Systems. Adjustments are achieved with the set-screw allowing you to fine tune the amount of gas allowed through the system for load specific...MSRP: $60.55$0.00Qty in Cart: 0Quantity:Price:MSRP: $60.55$0.00Subtotal: -
DBST SUPERLITE GAS BLOCK .750
Doublestar Corp.
MSRP: $47.59$0.00The Superlite Same Plane Gas Block is machined from rugged 6061 T6 aircraft aluminum and Type III hard coat anodized to match the finish of most AR style uppers. The 1913 picatinny rail matches the height of a standard mil spec flattop upper receiver...MSRP: $47.59$0.00Qty in Cart: 0Quantity:Price:MSRP: $47.59$0.00Subtotal: -
Out of stock
DBST LPK 556 BLK
Doublestar Corp.
MSRP: $100.79$72.00Double Star uses only the best parts to make their lower parts kits. The fire control group is made from mil spec heat treated 8620 steel and finished on all touch points for a smooth, crisp trigger pull with minimal creep or drag. This AR15 lower parts...MSRP: $100.79$72.00