Easy to install magazine extensions increase capacity of your 12 Gauge shotgun.
Machined from super-strong chrome moly steel tubing. The seven-shot extension allows for two extra rounds, the eight-shot adds three and the ten-shot adds five more rounds to the shotgun's capacity. Ten-shot extensions include a Barrel/Magazine Clamp and all extensions include a new spring. (Note: For 12 gauge only)
Magazine Extensions available for 12 gauge only Mossberg 930/935Benelli M1/M2/M4,Nova, Super Nova, Remington 870/1100/1187,Winchester 1200/1300 Defender/Black Shadow