Shop PSA for your AR-15 parts and accessories needs! Strike Industries Enhanced Steel Gas block offers a lighweight, yet durable, gas block designed to fit under nearly any handguard, and is necessary when running extended length free float set ups. The aesthetically attractive design also adds reinforcement in the most critical area, while keeping the weight light. Additional Features: a Low profile gas block a Designed for .750" diameter gas block journal a Lightweight skeletonized design a Package includes: (1) steel gas block, (2) M5x0.8x6mm set screw, (1) 2mmx8mm spring pin