Novritsch SSX23/SSX303 HPA MP5 Magazine Adapter under-250 you will need to prepare

you will need to prepare your selector barrel as indicated below

Equipped with a bolt catch lever and magazine button on both sides

Battery NOT included

and collectors

Novritsch SSX23/SSX303 HPA MP5 Magazine Adapter under-250 you will need to prepareConvert your SSX23, SSX303 or other MK23 type pistols into an HPA powered airsoft gun and use curved AEG MP5 mid caps for higher capacity. Recommended with 80 120 psi air pressure. Three spring tensioners are included with the HPA adapter in case you want to run heavy BBs (>0. 30g BBs) inside your MP5 magazines and ensure smooth feeding. Features Injection molded Max pressure: 160 psi No cooldowns Ambidextrous BB latching system to prevent dropping