The recently announced SIG SB15 brace is now a standard option on several of the company’s pistols. Â The new pistols include the P516 with the 7.5″ and 10″ barrels, the SIG P556 SWAT with a 10″ barrel and the P556 Classic.
The SB15 brace is a forearm brace that looks like a very short buttstock with adjustable straps that affix the unit to the shooter’s forearm. Â The idea is to provide greater control and stability when shooting one of these large pistols.
The unit passed ATF scrutiny (see the ATF letter here) so no worries about violating any NFA rules on having a SBR (short barrel rifle) without a tax stamp.
SIG Sauer announced the SB15 earlier this year, and these are the first pistols on which SIG is offering the device as a standard option. Â The pistols are similar to the rifle versions of the gun, but without a buttstock and with shorter barrels. Â Magazines and other accessories will interchange between the guns.