Will the SI Magwell fit my pistol?
As a general rule of thumb, the SI Magwell fits very nicely on frames with pre-beveled magazine wells. If your pistol was manufactured to original USGI specs, the SI Magwell will fit. The SI Magwell does NOT work on arched mainspring housings. Please refer to our Fit Guide below.
Will the SI Magwell fit with slim grips?
The SI Magwell will fit with standard grips and will stick out slightly with slim grips. We highly recommend pairing VZ 'magwell' or 'flat bottomed' grips with our SI Magwell.