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Mfg Item #: APAR600187
The Aero Precision M4E1 Complete Lower Receiver with Magpul SL-S Carbine Stock is the perfect upgrade for your AR build. This complete lower features an M4E1 Gen 2 Lower and is upgraded to include an Magpul SL-S Carbine Stock. The storage-capable version of the flagship Magpul MOE SL