I have now purchased 3 of the JMac M4 lowers (1 alpha run, and 2 "blems" which were nearly perfect), and they are excellent quality and machining. Very high-quality finish. And they are low-shelf cut with the proper 3-position indicator markings. I will be buying more in the future. Very high-quality product. Highly recommend you give one a try.
**BLEMISH** ~~~FINAL SALE~~~
-Slight machine blemish, anodizing blemish, strictly cosmetic.
**NOT AVAILABLE FOR CA SHIPPING**
ANY GUEST WHO ATTEMPTS TO PLACE AN ORDER WITH CALIFORNIA SHIPPING, THE ORDER WILL BE CANCELLED/REFUNDED.
JC logo AR-15 / M4 forged receiver
Machined with extra attention to the small details, this lower receiver has a classic style with perfect fit and finish
- M4 Mil-Spec Lower Receiver
- Set Screw retainer for selector detent/spring
- SAFE - SEMI - AUTO selector markings
- 7075 Forged Aluminum
- Type 3 Hard Coat Anodized
- Pocket for DIAS/SOT Conversion
- Model - M4
- Caliber - Muilti
- Manufacturer - MDi-Co (our machine shop)
Serial numbers JMACX015-JMACX250 may have tight tolerance in trigger well. All standard Semi-Auto FCG should fit. “Drop In” or “cassette” may require fitting. Accommodation for this type of trigger has been made on JMACX251+
This item must ship to an FFL!