Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Makes Rifle Run Cooler & Cleaner With Less Felt Recoil

Kit has everything you need to replace the standard gas system in your AR-15 and convert it to a reliable, positive-cycling, gas piston system. Eliminates venting of hot gases and powder residue into the bolt carrier and receiver for reduced fouling and less wear on the action. Feeds more smoothly, maintenance is easier, and the gun runs cooler, too. Short-stroke piston shaft eliminates concussive gas expansion in the upper receiver for less violent cycling and reduced felt recoil. Easy to adjust for three levels of gas release: normal fire, firing with a suppressor attached, or a single round fired without cycling. Picatinny rail on the gas block provides mounting space for a variety of front sights. Installation requires removal of original gas block, but no permanent alterations to barrel or upper receiver. Remove the piston system at any time and reinstall the original parts. Replacement handguard provides extra internal clearance for piston rod and has internal shield to protect your hand from heat buildup during sustained fire. Separate models for three popular gas system lengths:Carbine, Mid-Length, and Rifle. Pistol kit comes with a Samson 4" Free Float rail.


AR-15, Issue:10, Page:016
Big Book Catalog, Issue:68, Page:017

SPECS: Gas Block, Piston Tube, Bolt Carrier, Handguard Retainer Cap – Steel, black oxide finish. Piston – Stainless steel. Handguard – Reinforced polymer composite, black. Kit contains piston assembly, gas block, one-piece bolt carrier, handguard, handguard retainer, and installation instructions. Fits rifles with .750" O.D. barrel at gas port. Requires removal of original gas block. Gunsmith installation recommended. Machined 6061 T6 billet aluminum, hardcoat anodized, matte black. 7" (17.8cm) long, 2½" (6.4cm) dia. Installation of this handguard requires removal of the delta ring.  Samson 4" quad rail handguard included in Pistol kit.

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4 Item(s)
AR-15 GAS PISTON CONVERSION KIT-CARBIN
100-004-907WB
Gas Piston Conversion Kit, Carbine
100004907Gas Piston Conversion Kit, Carbine

Mfr Part: CPSDADA

$199.99 $259.99

In Stock
GAS PISTON CONVERSION KIT MID-LENGTH
100-004-922WB
Gas Piston Conversion Kit, Mid-Length
100004922Gas Piston Conversion Kit, Mid-Length

Mfr Part: MPSDADA

$275.99

Out of Stock View Alternatives
GAS PISTON CONVERSION KIT RIFLE LENGTH
100-004-923WB
Gas Piston Conversion Kit, Rifle
100004923Gas Piston Conversion Kit, Rifle

Mfr Part: RPSDADA

$288.99

In Stock
AR15/M16 GAS PISTON CONV KIT PISTOL
100-013-537WB
Gas Piston Conversion Kit, Pistol
100013537Gas Piston Conversion Kit, Pistol

Mfr Part: PPSDADA

$389.99

In Stock
AR-15/M16 GAS PISTON CONVERSION KIT