MR556A1 Competition Model

CaliberStock Extended LengthStock Retracted LengthWidthHeightBarrel Length
5.56 x 45 mm37 in.33.75 in3.07 in9.45 in16.5 in

MR556A1 Upper Receiver Kit

CaliberLengthWidthHeightBarrel Length
5.56 x 45 mm25.94 in.3.07 in.2.68 in.16.5 in.

MR556A1

CaliberStock Extended LengthStock Retracted LengthWidthHeightBarrel Length
5.56 x 45 mm37.68 in33.90 in3.07 in9.45 in16.5 in

MR762A1 Long Rifle Package II

CaliberStock Extended LengthStock Retracted LengthWidthHeightBarrel Length
7.62 x 51 mm40.50 in36.50 in.3.23 in.8.39 in.16.50 in.

MR762A1

CaliberStock Extended LengthStock Retracted LengthWidthHeightBarrel Length
7.62 x 51 mm39.10 in.35.94 in.3.23 in.8.39 in.16.50 in.