Used Angel A1 Fly Carbon Barrel Kit - White Airsoft Gun Upgrades A shaped lug on the

A shaped lug on the underside of the barrel chamber comes into contact with a hooked locking block at the end of the steel recoil spring guide rod

Compact and lightweight bi-pod design adding very little bulk or weight to the firearm

All Valken SW-1

By replacing the stock style bolt with the proven L7 style bolt head

still has sticker where ASA would mount

Used Angel A1 Fly Carbon Barrel Kit - White Airsoft Gun Upgrades A shaped lug on theThis kit includes 0. 691, 0. 693, and 0. 695 backs, and a White carbon Sly tip. This gloss black kit works with the Angel A1, A1 Fly, A1 Fly SE, AR: K, and SB. Tested and is in perfect working condition.