Designed for right-handed FX Impact rifles in .22 caliber, the 701 Air A.I.R. Mag uses a press-fit ball bearing and constant-tension spring for smooth, reliable feeding. The carousel accepts pellets and slugs and provides one extra round compared with standard FX stock magazines. Eight magnets secure the clear face plate and four magnets on the rear hold it during reloading. The magazine is designed for straightforward installation on FX Impact M3 or M4 rifles.