M11/380 acp: 'Double-Thread' M11A1/M12 barrel w 1/2-28 & 3/4-10 tpi's

  • Sale
  • $ 90

Now includes thread protector


We have listened to our customers and this new run has the requested features. We have enlarged the wrench flats for a more positive engagement as well as reduced the overall length of the 1/2 x 28 threads so there is no worry of hitting the internal baffles of the suppressor with the threads.

Exceptional quality replacement barrel for the Cobray/SWD M11/380 & M12/380 series of submachineguns & semi-automatic pistols.

Our custom 380 barrels have the larger 9mm 3/4" threads for installing an old-school 9mm SIONICS suppressor, or for installing our Pat-Pend 9mm MacAdapter, as well as having 1/2"-28 threads on the muzzle for installing a modern 9mm suppressor or AR15 type 9mm flash-hider/compensator.
Our custom 380 barrels, are physically/metallurgical identical to our M11/9 upgraded barrels, except chambered in 380.

Materials: 4140 Chrome-Moly steel.
Alignment: Bore-OD/Center.
Rifling: Button.
Twist: 1:10
Chamber: Upgraded (proprietary) from oem specifications & polished for improved feeding and extraction.
Suppressor contacts: 3/4-10tpi (oem/sionics) & 1/2-28tpi muzzle.
Suppressor alignments: 3/4" & 1/2" threads concentric with bore axis.
Length: 5 & 5/16" (OEM length)
Finish: Black oxide
Additional: Machined 7/8" wrench-flats for easy installation/removal

Proudly Made In The U.S.A

There is no additional cost for shipping it is included in the price of all listed parts.  If you would like special services for shipping such as insurance or signature confirmation please make an account on our site and contact us for a shipping quote.  ILWT cannot be responsible for lost or mishandled shipments once they are dropped to USPS.

A direct and improved replacement for all M11/380mm style pistols & submachineguns.

For NFA/Semi type:
Gordon Ingram, Mitch Werbell, & Sionics
Powder Springs, GA
RPB Industries
Wayne Daniel,  Sylvia Daniel
MasterPiece Arms, MPA, Defender Series
M11, M11/380, MAC11, MAC-11, MAC-11/380, M11A1, M-12, M12, COBRAY-380

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