This ejector spring is a replacement for the older style Mac-10 .45/9mm acp bolt assemblies. It fits a specific older style bolt only, please see additional photos for reference. 1.68" in length. **IN STOCK BUT YOU MUST DRILL YOUR OWN TENSION PIN HOLE-EXTRACTOR WILL BE SHIPPED WITHOUT A PIN HOLE**

If your Mac is not ejecting the spent brass cases, it may be a worn extractor rod. As the primer is hit and the charge detonated, the bolt is hit and forced to the rear of the receiver. Once it hits the buffer, the extractor rod is pushed through the bolt assembly and along with the extractor, pops the spent case out. This rod is also know as the extractor rod. (Rod only, other parts sold separately)

After thousands of rounds barrel replacement is recommended. This replacement barrel will renew your SMG. Easy installation takes only a few minutes, make sure to remove the barrel pin before unscrewing the barrel. Please contact us if you have any questions. Barrel thread is 3/4x10.*Back Order Only*

This barrel spring pin is a necessary replacement if you remove your barrel. Once you tap the pin out with a center punch, awl or other tool, you may mushroom or damage the pin. This pin is the factory replacement pin to keep your barrel tightly in place.

This steel SMG/Semi Auto disconnector is made of hardened steel. This part has a tendency to wear out especially if your shoot weekly. It may not allow the sear to engage or disengage properly causing jambs and/or misfires. Tension pin included.

The magazine catch spring and pin work in part with your magazine release lever. The pin holds the lever in place and the spring sits into the hole in the lever under the hand grip.

This is the replacement magazine catch lever for your Mac-10. It is perfect if you want to keep your MAC-10 authentic. Be sure to order a replacement catch spring and pin if you need it.**Out of stock**

This rear grip is a replacement for your lost or damaged grip. Comes with the main grip screw and is easily installed. Fits all Mac-10 SMG and Semi Auto mag wells.

This plate is a replacement for a missing or damaged plate. It fits at the rear of a bolt assembly, just behind the buffer. Easy installation, please call if you have any questions. (bolt assembly sold separately)