IMPORTANT:
This information is strictly for informational purposes only. None of us are engineers, metallurgists or even machinists. We are strictly amateurs and this just happens to be what we have done for our own use.
Modifying any weapon, ESPECIALLY blank adapting one, is extremely dangerous. Pressures can range up to 60,000 PSI or even higher. Variations of aperture size accuracy, recoil springs, weapon maintenance, and even basic weapon usage can create an extremely hazardous situation in one weapon when the same settings function correctly in another.
Basically, do not attempt anything mentioned herein without first consulting a qualified gunsmith or an engineer much more knowledgeable in weapon modifications.M1911 Blank Adapter Aperture Sizes
For Updates Contact: Drew Ballard
Initial information compiled by Dave from Gopher Munition Works, edited and arranged by Chris Guska
BFA Type Manufacturer Size Drill Size 2.) Threaded Barrel Set Screw Atlantic Wall Blanks #24 0.164 Notes: This is the true "Hollywood" in barrel type adapter, and only method for blank adapting the 1911 Blanksguys (Satterfield) #24 0.152 Gopher Munitions Works Blanks #24 0.152 Ketchum Blanks Swanson Blanks 7/32 0.218 WW2 Blanks