Mac 10 "Buffer" for 45 pre-ban open bolt

[GHB]

I tried search and saw some use rubber when making a buffer. any other materials? Looking up ones I can order says 95A Urethane but I don't know if any company is legit. Has anyone ordered from macmachineguns.com or usmachineguns.com???

 

[USMG]

we sell them

US Machinegun: (3) Neoprene Buffers for all Mac-10 .45/9mm & Master Piece Arms .45 acp, MAC-10 SMG/OPEN BOLT REPLACEMENT PARTS, M10RP-3BFRS

 

[Deerhurst]

Both of those places are good and legit. USMG or the folks at Mac Machine Guns will get you what you need.