Test 1774233731175358769 Aero Precision M4E1 Stripped Lower Receiver

The M4E1 Stripped Lower Receiver is machined from 7075-T6 aluminum forgings to mil-spec dimensions, featuring an integrated trigger guard that eliminates the weak point common on standard lowers. The flared magwell provides faster, more reliable magazine insertions under stress. Compatible with all mil-spec upper receivers and parts kits, this lower ships with a threaded bolt-catch roll pin hole that makes assembly easier and reduces the chance of marring the finish during installation. Anodized in a durable Type III hard coat that matches most commercial upper receivers. The M4E1 platform has become one of the most popular stripped lowers on the market for good reason — tight tolerances, no wobble, and consistent quality batch to batch.