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piston kit
Gas-operation is a system of operation used to provide energy to operate locked breech, autoloading firearms. In gas-operation, a portion of high-pressure gas from the cartridge being fired is used to power a mechanism to dispose of the spent case and insert a new cartridge into the chamber. Energy from the gas is harnessed through either a port in the barrel or a trap at the muzzle. This high-pressure gas impinges on a surface such as a piston head to provide motion for unlocking of the action, extraction of the spent case, ejection, cocking of the hammer or striker, chambering of a fresh cartridge, and locking of the action.
Handguard sold. Adams Arms piston kit with front rail block, mid length short strike piston rod with Adam's Arms bolt Carrier (no bolt). This is a .750 gas block diameter. $80 $70 for the piston kit, rod, and carrier. Pickup in Puyallup or Sumner. Will ship for $20.
Trade for a quality weapon...
Want a gas piston setup but it's too cost prohibitive?
This kit will get you up and running with one.
All you need is a complete lower assembly, a mil-spec upper receiver, and a barrel with a mid-length gas port.
If you run a suppressor, this kit could work on a barrel as short as 12.5...
And used but in functionally perfect condition. I switched to a low pro piston system, and no longer need this one. It runs great. Easy to install. Bolt is in immaculate condition. Take it all for $125.
Prefer local pickup in Sumner or Puyallup. Will ship for $15. Trades for AR barrels or DI...