Angstadt Arms 3 lug blast shield. Fits B&T SPC 9, APC 9 TP9,H&K MP5 etc. Compatible with all 9mm with a 3 lug adapter. Brand new in bag and sealed. Made from hardened steel with a black nitride finish. Attaches via universal 3-lug mounting interface. 2.5″ long. 6.5 Oz weight. NO trades. Shipping not included. Thanks for viewing.