Sig MPX-K 9mm

[SHOGUN]

This may be a dumb question but is the Sig MPX-K considered a Class III weapon by the ATF? I've had the 8" barreled version of the MPX but since the MPX-K has the 4.5" barrel and collapsible stock I was curious if they considered it a NFA weapon and requires the tax stamp.

 

[Jerzsubbie]

https://www.sigsauer.com/store/sig-mpx-k.html

No, it is a pistol since it has a pistol brace.

If it has a brace that is “designed” to attach to your arm, then it’s not a stock and therefore a pistol. This is the route many mfgs are going these days given the many brace options that are available.

 

[SHOGUN]

Ok, thought since the total length was under 26" with the brace that it was considered one...thanks for the clarification!

 

[BigWaylon]

If you added a VFG, and it was under 26” OAL (and brace doesn’t count in the measurement), you have an AOW...but not an SBR.