Compensated barrels require a ported slide!

Stock Glock factory .40 barrels to convert your .357 (models 31, 32 &33) to .40. Convert your G27 .40 to a G33 .357 - see below. We also carry stock replacement barrels for all other models. These are factory new barrels that require no fitting at all - they are drop-in perfection. Note: you will want to get .40 mags for the conversion from .357 to .40, so you can identify your ammo.


WE DISCOURAGE USING GLOCK 9mm BARRELS IN .40 CAL PISTOLS. THIS IS NOT RECOMMENDED BECAUSE THE FIT IS NOT 100% AND MAY LEAD TO PROBLEMS.