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 10 SUPER MOD MK4 FED DDC
Geissele Automatics
MSRP: $510.00$408.00This is the same rail used to fullfill contracts for the Federal Bureau of Investigation (FBI). It's strength, modularity and M-Lok compatibility gives users the capabilities needed to successfully complete the mission at hand.MANUFACTURER: Geissele...MSRP: $510.00$408.00 -
GEISSELE 13.5 SMR MK16 MLOK BLK
Geissele Automatics
MSRP: $414.38$332.00The Geissele Super Modular Rail MK16 offers unmatched performance for the most demanding shooters. Mounted to your AR-15 upper using the updated version of the proven Geissele Barrel Nut design, the MK16 is not only easy to install and maintain, but...MSRP: $414.38$332.00 -
GEISSELE 15 SUPER MOD MK14 MLOK BLK
Geissele Automatics
MSRP: $414.38$332.00Geissele's Super Modular Rail (SMR) MK14 M-LOK handguard is the latest entry to the Geissele line-up of Super Modular Rails. The new handguard design offers a smaller diameter and overall height to create a slimmer package. Included with the MK14 Super...MSRP: $414.38$332.00 -
GEISSELE 13.5 SPR MOD MK14 MLOK BLK
Geissele Automatics
MSRP: $350.63$281.00Geissele's Super Modular Rail (SMR) MK14 M-LOK handguard is the latest entry to the Geissele line-up of Super Modular Rails. The new handguard design offers a smaller diameter and overall height to create a slimmer package. Included with the MK14 Super...MSRP: $350.63$281.00 -
GEISSELE 9.3 SPR MOD MK14 MLOK DDC
Geissele Automatics
MSRP: $382.50$306.00Geissele's Super Modular Rail (SMR) MK14 M-LOK handguard is the latest entry to the Geissele line-up of Super Modular Rails. The new handguard design offers a smaller diameter and overall height to create a slimmer package. Included with the MK14 Super...MSRP: $382.50$306.00 -
GEISSELE 10.5 SPR MOD MK8 MLOK BLK
Geissele Automatics
MSRP: $382.50$306.00Versatile and innovative, Geissele's MK8 DDC Super Modular Rail is a perfect addition to any AR-platform. It features M-LOK attachment points in the 3, 6, and 9 o'clock positions as well as in the upper 45 degree quadrants, giving the user virtually...MSRP: $382.50$306.00 -
GEISSELE 10.5 SPR MOD MK8 MLOK DDC
Geissele Automatics
MSRP: $414.38$332.00Versatile and innovative, Geissele's MK8 DDC Super Modular Rail is a perfect addition to any AR-platform. It features M-LOK attachment points in the 3, 6, and 9 o'clock positions as well as in the upper 45 degree quadrants, giving the user virtually...MSRP: $414.38$332.00 -
FORTIS SWITCH RAIL 308 15.75 MLOK
Fortis Manufacturing Inc.
MSRP: $338.38$271.00The Fortis SWITCH series is an extremely lightweight, yet robust free float rail system designed for the AR platform. When designing the SWITCH, Fortis wanted a handguard that was easy to install, but also be able to quickly change rails for a variety...MSRP: $338.38$271.00 -
FORTIS SWITCH RAIL MOD 2 9.6 MLOK
Fortis Manufacturing Inc.
MSRP: $255.25$205.00The new Switch MOD 2 Series takes the very best from the Switch Series and custom tailors it to fit the needs of shooters. Fortis eliminated the 12 o'clock picatinny section and replaced it with open vents. This gives a more streamlined appearance to the...MSRP: $255.25$205.00 -
FORTIS SWITCH RAIL 13.8 MLOK MOD 1
Fortis Manufacturing Inc.
MSRP: $284.94$228.00The new Switch MOD 1 Series takes the very best from the Switch Series and custom tailors it to fit the needs of shooters. M-LOK sections up front that gives you flexibility and freedom to run your light solutions. No more need for purchasing additional...MSRP: $284.94$228.00 -
FORTIS SWITCH RAIL 13.0 MLOK MOD 1
Fortis Manufacturing Inc.
MSRP: $279.00$224.00The new Switch MOD 1 Series takes the very best from the Switch Series and custom tailors it to fit the needs of shooters. M-LOK sections up front that gives you flexibility and freedom to run your light solutions. No more need for purchasing additional...MSRP: $279.00$224.00 -
FORTIS REV II FF RAIL 13.8 MLOK BLK
Fortis Manufacturing Inc.
MSRP: $232.68$167.00Fortis Manufacturing's REV II AR-15 M-LOK Handguard is an extremely lightweight yet robust free floating rail system. When designing the REV, Fortis didn't want just another rail system, they wanted a better, lighter, feature-rich handguard that was...MSRP: $232.68$167.00