TTI - 6.03mm 285mm Inner Barrel GBB Cut 0.40 an orange follower comes into

an orange follower comes into view

To adjust the retention on the Magazine Carriers you need to screw or unscrew the silver grub screw found on the side of the carrier with a 1/8” Allen key/hex key

The drop-in buffer features a high density of spring that absorbs the shock from the bolt carrier

Item Code : RSA-STI

TTI - 6.03mm 285mm Inner Barrel GBB Cut 0.40 an orange follower comes intoTTI 6. 03mm 285mm Inner Barrel The TTI 6. 03mm 285mm Inner Barrel is a precision tight bore upgrade barrel, GBB cut for gas blowback pistols. Machined to a true 6. 03mm internal diameter, it tightens the air seal around the BB to deliver improved accuracy, range and shot to shot consistency over a standard bore barrel. The 285mm length is a versatile fit for mid to long GBB platforms, making it an easy drop in performance upgrade. Each barrel is