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You are here: Products : D: MAC M11/9 Repair : Frame repair M11/9
Frame repair M11/9
Broken-frame repair/rebuild

We repair M11/9smg registered receivers with blown-out or cracked rear frames.
The rear of the registered receiver cracking & coming apart is very common occurrence on M11/9 subguns due to (factory) substandard welding.
We expertly re-align & straighten, and repair the weapon to better than factory-new specs.
Deeper welding penetration & much more weld contact patch, ensures a dramatically stronger receiver. No one does the rticks we do in the weld/repair of these recievers.
Receiver will never break again!
Registered receiver is better than new when we are finished.
Receiver repair includes refinishing (glass bead & mil-spec manganese parkerizing) of upper & lower receiver.

  • Add $100 for baked-on beautiful HK semi-bloss-black enamel over the frsh parkerizing. Includes both upper & lower receivers

  • Add $50 for sear-engagement modification.

  • Add $25 for ejection port enlargment, for more reliable ejection. .400" front enlargement.

    Contact us for NFA shipping instructions, Copy of Form 3/4 required.
  • $495

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    C&S Metall-Werkes • 4025 Old Hwy 94 S, Ste H • St. Charles, MO 63304
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