GunBuildr
AI illustration of a similar part on the gun.
SMG · Gun
SIG Sauer MPX K
$2,100
Barrel thread is M13.5x1 LH per SIG's 4.5 in barrel page.
Build with this partOpens the builder with this part fitted. Other parts change only if they have to.
Specs
| Calibers | 9mm |
| Barrel (in) | 4.5 |
| Thread | M13.5x1 LH |
| Type | braced pistol |
| Mag pattern | MPX |
Pros and cons
Pros
- Closed, rotating bolt with short-stroke gas piston
- AR-15 style controls and grips
- Large factory and aftermarket support
Cons
- Metric left-hand muzzle thread limits devices
- Gen 1 and Gen 2 parts do not all cross-fit
Works with
Works with: 9mm.
Builds using this part
- SIG MPX-K PDW $2,832
Other gun options
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- KRISS USA Vector CRB Gen II $1,599
- CZ Scorpion 3+ Pistol $1,199
- Heckler & Koch SP5 $2,949
- B&T APC9 PRO $2,492
- Ruger PC Carbine $799