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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GEISSELE LPK ULTRA DUTY BLK
Geissele Automatics
MSRP: $207.06$147.90The Geissele Ultra Duty Lower Parts Kit is made for the most demanding operators and includes all the internal parts necessary to complete or rebuild your lower receiver. Key components are made from Stainless Steel, which offers a much longer life-span...MSRP: $207.06$147.90 -
GEISSELE LPK STANDARD WITH GRIP
Geissele Automatics
MSRP: $92.82$66.30The Geissele Ultra Duty Lower Parts Kit is made for the most demanding operators and includes all the internal parts necessary to complete or rebuild your lower receiver. Key components are made from Stainless Steel, which offers a much longer life-span...MSRP: $92.82$66.30 -
GEISSELE LPK STANDARD
Geissele Automatics
MSRP: $84.25$60.18The Geissele Standard Lower Parts Kit includes all the internal parts necessary to complete or rebuild your lower receiver. This quality mil-spec kit features an improved safety detent and their specially designed Posi-Snap safety, which provides the end...MSRP: $84.25$60.18 -
FORTIS TAKEDOWN PIN CASE HARDENED
Fortis Manufacturing Inc.
MSRP: $30.52$21.80The Fortis Enhanced Pins Set features a drill through design to keep the weight low without sacrificing rigidity. Manufacturing it out of 17-4 stainless steel allows Fortis to balance between form and function. This enhanced set is machined with...MSRP: $30.52$21.80 -
FORTIS HAMMER AR10 BLACK ANO
Fortis Manufacturing Inc.
MSRP: $73.08$52.20The 7.62/.308 Fortis Hammer charging handle stays true to their brand. They engineer, design, & develop military grade accessories that look good and function great. Tested and evaluated by industry professionals, then put to the test by people in the...MSRP: $73.08$52.20 -
FORTIS HAMMER AR15/M16 BLACK ANO
Fortis Manufacturing Inc.
MSRP: $66.43$47.45The Fortis Hammer charging handle stays true to their brand. They engineer, design, & develop military grade accessories that look good and function great. Tested and evaluated by industry professionals, then put to the test by people in the military and...MSRP: $66.43$47.45 -
FORTIS GAS BLOCK M2 .750 SS
Fortis Manufacturing Inc.
MSRP: $73.08$52.20The Fortis low profile gas block is designed to work in conjunction with today's match grade barrels. Don't want to mar your barrel installing the gas block? Neither do we! So rock this gas block and put those concerns to bed. The Fortis LP gas block is...MSRP: $73.08$52.20 -
FORTIS MAG CATCH & BUTTON COMBO BLK
Fortis Manufacturing Inc.
MSRP: $33.18$23.70The 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$23.70 -
FORTIS SLS FIFTY AMBI SFTY SLCTR GLD
Fortis Manufacturing Inc.
MSRP: $53.13$37.95High 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$37.95 -
FORTIS SS FIFTY AMBI SFTY SLCTR GLD
Fortis Manufacturing Inc.
MSRP: $53.13$37.95High 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$37.95 -
FORTIS K2 ENHANCD AR15 END PLATE BLK
Fortis Manufacturing Inc.
MSRP: $59.78$42.70When 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$42.70 -
FORTIS LW ENHANCD AR15 END PLATE GLD
Fortis Manufacturing Inc.
MSRP: $53.13$37.95The K1 system features a tapered castle nut that seals itself onto the end plate. This ultra precision snug fit allows the castle nut to seat and seal itself into place without the need of staking the end plate. No ratcheting, no set screws, no backing...MSRP: $53.13$37.95