This Superlative Arms piston system (brand part no. SABO-PS-RFD-R750SM) converts an AR-15 to piston operation, built in the rifle-length gas configuration with a solid .750-inch gas block and a right-hand operating rod. The adjustable design lets you dial in gas flow to tune cycling for a suppressor, subsonic ammunition, or an otherwise over-gassed rifle-length build. This rifle part is a direct upgrade over a direct-impingement gas system.

Key Specifications

• Sized for a rifle-length gas system.
• Includes a solid .750-inch gas block.
• Built with a right-hand (RH) operating rod.
• Features an adjustable gas system for tuning gas flow.

Frequently Asked Questions

Why choose an adjustable piston system? It lets you dial back excess gas on a suppressed or over-gassed build, and switches your rifle from direct impingement to piston operation for a cleaner action.

Will this fit a carbine or mid-length gas system? No, this kit is sized for the rifle-length gas system specifically; Superlative Arms sells separate pistol, carbine, and mid-length versions.

Buy the Superlative Arms AR-15 Adjustable Piston System w/ Solid .750 Gas Block, Rifle-Length, RH

Converting an over-gassed rifle-length build to adjustable piston operation is one of the most effective reliability upgrades available. Order it from our Lubbock, TX gun shop for fast, insured shipping.