Adams Arms – Piston Kit – Adjustable Micro Block – Pistol (300 BLK)

• Kit includes:

  • NEW! Full drop in BCG. No need to mess around with proper bolt and firing pin installation

  • P Series Micro Block – Adjustable (5 Settings – 100%/74%/53%/32%/11%)

  • Bolt Spring

  • Drive Rod with Bushing and Spring

  • Our Piston Kits No Longer Require the Receiver Bushing or Installation Dowel

   

  The Adams Arms Piston System:

  • A short stroke free floating piston system.

  • Is Self-Cleaning.

  • Carbon and gases are expelled forward, away from operator.

  • Corrosive resistant coating processes.

  • Harmonics are not transferred into the barrel.

  • Doesn’t vent directly to atmospheric pressure; this eliminates flash signature and super sonic crack which is optimal for night vision and suppresses fire.

  • Has a Lifetime Warranty.

   

  To select the correct length kit, use the following measurements:

  • Pistol: 4.846″ from barrel extension to shoulder

  • Carbine: 7.866″ from barrel extension to shoulder

  • Mid: 9.866″ from barrel extension to shoulder

  • Rifle: 13.241″ from barrel extension to shoulder

  • For 300BLK we only recommend a Pistol Gas Length and a Low Mass Carrier for optimal performance.

  We recommend using a our Adams Arms barrel nut, standard G.I. barrel nut, or barrel nut with similar measurements for proper fit and function of the kit. Many aftermarket proprietary barrel nuts do not offer the clearance for the drive rod or proper seating of the spring and bushing.

  Micro Gas Blocks should have the set screws torqued to 55-60 in-lbs

Additional Information

Overview

.750″ Gas block journal