KNS Precision AK Adjustable Gas Piston (AGP) Drop-In Replacement

Overview

The KNS Precision AK Adjustable Gas Piston is a drop-in replacement for the AK piston head that attaches to the bolt carrier in about 10 minutes with no major gunsmithing or permanent modification.

What it does

• Provides an extremely wide range of gas adjustment for suppressed and unsuppressed use
• Helps reduce recoil and can decrease cyclic rate for full-auto fire
• Tuning can improve controllability and reduce excess wear from an over-gassed AK

Installation notes

• No need to remove or replace the gas block—just change the piston and go shoot.
• Small Bore/Caliber pistons are for .223, 5.56mm, and 5.45mm (for AKs of ALL CALIBERS with less excess gas).
• Large Bore/Caliber pistons are for 7.62x39, .308", and 7.62x54r.
• When selecting your piston, refer to the compatibility chart.
• A small percentage of commercial spec firearms may have the piston welded to the carrier; KNS recommends purchasing a new carrier for the easiest installation.
• Vepr and Saiga pistons require drilling through the op-rod after screwing the piston into the carrier due to staking-location variations (Op-Rods are phosphated instead of nitrided for easy drilling).

Key benefits

• Updated Mod 2 collar
• Tool-free adjustment
• Reduces recoil
• Tune almost any AK for suppressed use
• Decrease cyclic rate for full-auto fire
• US-made 922r compliance part
• Piston head assembly made from corrosion-resistant stainless steel
• All surface parts nitrided for durable, low-friction, easily cleaned operation
• Patent 10,330,480