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) Shotgun Ammunition the SMR HK416 M-LOK meets

the SMR HK416 M-LOK meets military specifications

Its ergonomically designed G10 scales provide a secure and comfortable grip

Stow-N-Go concealed carry lite holster offers an exceptional combination of high performance

one designed to produce approximately a 4

supersonic or subsonic

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) Shotgun Ammunition the SMR HK416 M-LOK meetsThese extensions feature an ergonomic shape that allows for better insertion, and finger grooves, allowing the magazine to be stripped from the handgun if needed.