US Made
Accepts Colt Style SMG Mags
Installs By Inserting In Bottom Of Standard Lower
Anodized Matte Finish
Insert Converts Standard 5.56 Lower Receivers To Accept
Bolt Hold Open On Last Shot
One Retention Screw On Top Of Adapter, And Two Set Screws That Lock Into Wall Of Magwell.
9mm Stick Magazines
All Aluminum Body With Steel Inserts
Light weight