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M1 Carbine Blank Adapter Aperture Sizes
Initial information compiled by Dave from Gopher Munition Works, edited and arranged by Chris Guska
BFA Type Manufacturer Size Drill Size 1.) Military Surplus (Functions) Notes: With this adapter, since it is non-adjustable, it is indicated if it functions. This adapter can be drilled and tapped for a set screw. This adapter will only fit on M1 carbines with milled front sights. Atlantic Wall Blanks Blanksguys (Satterfield) Gopher Munitions Works Blanks Ketchum Blanks Swanson Blanks Norwegian Red Plastic Yes 2.) Threaded Barrel Set Screw Atlantic Wall Blanks 5/32 0.156 Notes: This is the true "Hollywood" in barrel type adapter, the OLD Norwegian red plastic blanks sometimes take 1/8 - 0.125 to cycle. Blanksguys (Satterfield) 5/32 0.156 Gopher Munitions Works Blanks 5/32 0.156 Ketchum Blanks Norwegian Red Plastic 9/64 0.140 Swanson Blanks
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