[lavaroise]

SB tactical is the only one approved by ATF so far... I would go with that. MAC says it is his favorite. It is the most stock looking one,ironically.

I bought into the Sig and it is a bit of a bummer.

[Joe Brower]

SB Tactical is the company that pressed this issue with the BATFE, and thus received a reply (back on March 21st, although for some reason we're only hearing about it now).

Reading the text of the letter, the ATF doesn't appear to make this distinction just for SBT's product. Nor does it even say how far out on the buffer tube such a device might be mounted, although I have seen elsewhere that 13.5" was the limit, although that is unsubstantiated at this time.

One bit I find concerning is language describing braces that are 'permanently fixed' to the buffer tube. Some, like the KAK Shockwave mount this way.

And so it goes... Anyone with any clarifications to any of this, please chime in.

[old-ager]

MAC says the Sig is made by SB Tactical