We are currently not shipping to Washington state addresses.
For California customers, orders must ship to a verified FFL.

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

$320.00

SKU: FGAA-03300 Category: Brand:

NEW! Kit now comes with a full BCG instead of just the carrier. No need to mess around with proper bolt and firing pin installation

This kit is for a 300 BLK, piston length gas system.

 

This kit is NOT made  for any ar10/ar308/SF308 platform.

Adams Arms handguards and barrel nuts are recommended. You can reference this FAQ page for a rail clearance diagram, as well as a short list of other handguards that might work.

 

Availability: In stock

Compare

Description

For 300BLK we only recommend a Pistol Gas Length, a Low Mass Carrier, and a minimum barrel length of  8.5″ for  optimal performance.

 

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 outward at the gas block, not towards the action.
  • Corrosive resistant coating processes.
  • Harmonics are not transferred into the barrel.
  • Has a Lifetime Warranty.

 

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

Weight 2 lbs
Dimensions 18 × 5 × 3 in
Part Type

Adams Arms, Piston Kits

Platform

AR-15

Adjustable Kit Length:

Overview

.750″ Gas block journal

Click outside to hide the comparison bar
Compare