** The Aero Precision lower receiver is California legal as is and does not require CA compliant parts or modification. CA compliant parts are buyer's responsibility when built into rifle. **
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The Aero Precision AR15 Complete Lower Receiver with Magpul SL-S Carbine Stock is the perfect upgrade for your AR build. This complete lower features an AR15 Gen 2 Lower and is upgraded to include an Magpul SL-S Carbine Stock. The storage-capable version of the flagship Magpul MOE SL.