Piston Upper

PWS Upper - 14.5" .223 Wylde Black Tri-5.56

A model developed after the M4 pattern Upper, the PWS MK114 Upper has quickly become the crowd favorite for those wanting a compact package without the NFA paperwork associated with shorter barrels. The MK114 retains lethal capability out to 500 meters with varying types of ammunition and boasts a…

Adams Arms P Series Micro Adjustable Block Piston Kit - Low Mass Carrier

…Adjustable (5 Settings - 100%/74%/53%/32%/11%) * Upper Receiver Bushing * Bushing Installation Rod * Bolt Spring * Drive Rod with Bushing and Spring * Installation Instruction Card The Adams Arms Piston System: * A short stroke free floating piston system. * Is Self-Cleaning. * Carbon and gases are…

Adams Arms Upper 5.56 7.5 BBL P2

…rail that covers the all new P-Series Micro Block piston system. This upper features a Manimal flash hider and ambidextrous charging handle. The P2 is your off-the-shelf, tactical model that is configurable for any type of shooter. SPECS: Upper Receiver: A4 Flat-Top, Forged Barrel Length: 7.5"…

Adams Arms 16" Mid Tactical Evo 5.56 Upper

…picatinny rail pieces to meet any of your needs. Add the patented Adams Arms piston system and you'll have an upper that will run cleaner, cooler, and longer than any other AR upper you own. *Weight: 4.721 lbs Features: * Upper Receiver: A4 Flat-Top, Forged * Barrel Length: 16" * Barrel Contour:…

Adams Arms P Series Micro Block Piston Kit Pistol Length

…Carrier * P Series Micro Block - Non-Adjustable * Upper Receiver Bushing * Bushing Installation Rod * Bolt Spring * Drive Rod with Bushing and Spring * Installation Instruction Card The Adams Arms Piston System: * A short stroke free floating piston system. * Is Self-Cleaning. * Carbon and gases are…

Adams Arms Upper 5.56 7.5" BBL P2 Adjustable

…battle-ready model in the P-Series lineup. The P2 model includes an ergonomic free float rail that covers the all new P-Series Micro Block piston system. This upper features a Manimal flash hider and ambidextrous charging handle. The P2 is your off-the-shelf, tactical model that is configurable for…

Franklin Armory F17SPR 18" Piston 17 WSM Complete Upper with Magazine - Black

Adams Arms Upper 5.56 11.5 BBL P2 Adjustable

…rail that covers the all new P-Series Micro Block piston system. This upper features a Manimal flash hider and ambidextrous charging handle. The P2 is your off-the-shelf, tactical model that is configurable for any type of shooter. SPECS: Upper Receiver: A4 Flat-Top, Forged Barrel Length: 11.5"…

LWRC IC Enhanced Platform 5.56mm 16.1 in. Barrel Upper

…Enhanced upper uses our Cold Hammer Forged barrels that are spiral fluted to reduce weight. They include a two position gas block with a bayonet lug that can be switched between suppressed and non-suppressed modes. This feature enables the user to pre-restrict the gas flow to the piston system,…

Adams Arms Standard Carbine Piston Kit

This system will work with .223/5.56 x 45 mm NATO. Includes: * Patented One-Piece Bolt Carrier * .750" XLP Multi-Adjustable Low Profile Gas Block * Gas Plug * Upper Receiver Bushing * Bushing Installation Rod * Bolt Spring * Drive Rod with Bushing and Spring * Installation DVD

Adams Arms Standard Mid Piston Kit

…Bolt Carrier * .750" Picatinny Gas Block with 3 settings (full gas for standard fire, half gas for suppressed, no gas for single shot) * Gas Plug * Upper Receiver Bushing * Bushing Installation Rod * Bolt Spring * Drive Rod with Bushing and Spring * M4 Style Modified Handguards * Modified Handguard…

Adams Arms P Series Micro Block Piston Kit Carbine Length

…Carrier * P Series Micro Block - Non-Adjustable * Upper Receiver Bushing * Bushing Installation Rod * Bolt Spring * Drive Rod with Bushing and Spring * Installation Instruction Card The Adams Arms Piston System: * A short stroke free floating piston system. * Is Self-Cleaning. * Carbon and gases are…

Adams Arms P Series Micro Block Piston Kit Mid Length

…Carrier * P Series Micro Block - Non-Adjustable * Upper Receiver Bushing * Bushing Installation Rod * Bolt Spring * Drive Rod with Bushing and Spring * Installation Instruction Card The Adams Arms Piston System: * A short stroke free floating piston system. * Is Self-Cleaning. * Carbon and gases are…

Adams Arms P Series Micro Block Piston Kit Rifle Length

…Carrier * P Series Micro Block - Non-Adjustable * Upper Receiver Bushing * Bushing Installation Rod * Bolt Spring * Drive Rod with Bushing and Spring * Installation Instruction Card The Adams Arms Piston System: * A short stroke free floating piston system. * Is Self-Cleaning. * Carbon and gases are…

Adams Arms Upper 5.56 11.5 BBL P2

…rail that covers the all new P-Series Micro Block piston system. This upper features a Manimal flash hider and ambidextrous charging handle. The P2 is your off-the-shelf, tactical model that is configurable for any type of shooter. SPECS: Upper Receiver: A4 Flat-Top, Forged Barrel Length: 11.5"…

Leapers UTG PRO M-LOK AR-15 13 in. Super Slim Free Float Handguard

…and User Friendly Installation with Included Easy to Follow Instructions, Barrel Nut Wrench, and Additional Installation Tools and Accessories * Designed to Fit with Standard Gas Tube and Barrel Diameter Not Exceeding 1 in. Not Compatible with Piston System, Re-designed or Over-sized Upper Receivers