Don't understand the question.
younghistorians, you wrote:
Can anyone vouch for this?
Uh, what? That Auto-Ordnance is selling an SBR version of the M1 TSMG? Apparently they are. Also, a short barrel version of the model of 1928.
If you are asking about a blank-firing adaptation of the SBR, perhaps one of the other members could come up with an answer. Seems I noticed that at least one member has some experience in movie special effects (SFX!
) and might have some suggestions.
I believe I've read that it is more difficult to make a .45 ACP cal firearm function with blanks than some other calibers, such as 9x19mm. And I know there are a lot of blank-firing "non-gun" replicas sold, chambered for a special, 8mm (that's
eight mike-mike) blank, so that might be the way to go.
Making a semi-auto gun funtion properly firing blanks is a good deal more complicated than just loading up the magazine and shooting. Turns out to be quite a bit of work:
1. If you adapted to either 8 or 9 mm blanks, you'd need to at least a chamber insert, or possibly an entirely different barrel. Not so for .45 ACP
2. To make the gun function semi-automatically, you'd need some sort of barrel constriction device installed.
3. I'm really out of my depth here - - I'd
think you'd need to reduce the weight of the bolt and actuator, and lessen the recoil spring resistance as well.
4. If you DID go to the smaller caliber blanks, you'd need a proper magazine - - The standard TSMG mags wouldn't handle other than .45 cal blanks.
Anyone know of a reliable source of .45 ACP blanks? On reflection, I think the blank firing adaptation in cal .45 would end up being easiest, even if the per-round cost was higher.
Late addition: a source for SOME blank ammo - -
http://www.iar-arms.com/category.asp?category=Blank-Firing Ammunition
Best of luck - -
Johnny