Warne MESW54BLK, Magazine Extension made of 6061-T6 Aluminum with Hardcoat Anodized Black Finish for S&W M&P, Magazines (Adds 5rds 9mm Luger, 4rds 40 S&W)

These extensions feature an ergonomic shape that allows for better insertion, and finger grooves, allowing the magazine to be stripped from the handgun if needed.

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Compatible With:	S&W M&P Mags
Capacity:	4rd
Finish:	Hardcoat Anodized
Caliber:	40 S&W
Model:	Magazine Extension
Color:	Black