Sharps Bros - Jack9 "9mm, .40 S&W" Billet Lower
This is Sharps Bros pistol caliber version of The Jack, now updated to the Gen2 styling. Glock magazine fed. Available as the AR-15 lower that is compatible with most AR15 pistol caliber uppers chambered in 9mm, .40 S&W or .357 SIG.
With the Gen2 Jack9 we also improved the mag well, beefed up the ejector/magazine stop (and made it adjustable via set screws, to accommodate slight geometry differences across different types of 'Glock' mags) and switched to a threaded screw instead of a pin for the mag lever.
