HYBRID HPA AAP-01 LOWER RNVGA This adapter accepts an AR-15

This adapter accepts an AR-15 receiver buffer tube

spare o-ring

Perfect for those embarrassing photographs

or if you just really enjoy HK slapping your gun

Hard Coat Anodized 6061-T5 Aluminum

HYBRID HPA AAP-01 LOWER RNVGA This adapter accepts an AR-15TAPP HYBRID AAP 01 Lower The TAPP HYBRID AAP 01 Grip Frame is a revolutionary upgrade for your Action Army AAP 01, combining the ease of High Pressure Air (HPA) and the reliability of AEG MP5 or ARP9 magazines with the exhilarating recoil of a Gas Blow Back (GBB) pistol. This full replacement grip frame unlocks compatibility with AEG magsdelivering extended capacity and reliable feeding on one of the most popular GBB platforms. Note: MP5 and ARP9