Customize PSA Ten-Year Anniversary AR-15/PA-10 Stripped Lower Receiver Set With Matching Serial Numbers

PSA AR-15 Safe/Fire Stripped Lower Receiver These lowers are made using the most advanced aerospace manufacturing technology to produce the industries finest, forged Mil-Spec lowers. Our receivers are machined on a multimillion dollar, automated, manufacturing system which enables us to produce a product of unequaled quality and value. These forged lowers are quality made using material is 7075-T6 and are marked "CAL MULTI" to accommodate most builds. Finish is Black Hardcoat Anodize per MIL-8625 Type 3 class 2. Fire selector is marked "Safe" and "Fire". This is a "high shelf" lower. PSA PA-10 Gen2 Stripped Lower Receiver Machined from Aluminum Forgings 7075-T6Hardcoat Anodizing: MIL-A-8625F, Type III, Class 2 The Gen2 PA10 receivers are functionally compatible with the Gen1 receivers. However, we recommend matching Gen2 lowers to Gen2 uppers for best appearance. There are external cosmetic differences when mixing gen1 and Gen2 upper and lower receivers that some may not find appealing. The AR10 platform does not enjoy a common design between manufacturers, like the AR15. As a result, there can and will be subtle differences in the parts kits of various manufacturers. Some parts, like the fire control group, are shared with the AR15 platform to preserve the options for upgrading. For best results, we recommend only using PSA PA10 parts with our uppers and lower receivers. We do not recommend using other manufacturers parts in our products.