Continue shopping “Aero Precision M4E1 Threaded Complete Pistol Upper FDE, 7.5″ Bbl. 5.56, Atlas R-One 7″ M-LOK HG” has been added to your cart. Remove item Thumbnail image Product Price Quantity Subtotal × CD2 BLK CLIP ON SPEED LDR HOLDER $10.00 CD2 BLK CLIP ON SPEED LDR HOLDER quantity $10.00 × Glock G21 G5 MOS .45acp, (13+1) 3 Magazines $629.00 Glock G21 G5 MOS .45acp, (13+1) 3 Magazines quantity $629.00 × Aero Precision M4E1 Threaded Complete Pistol Upper FDE, 7.5" Bbl. 5.56, Atlas R-One 7" M-LOK HG $389.99 Aero Precision M4E1 Threaded Complete Pistol Upper FDE, 7.5" Bbl. 5.56, Atlas R-One 7" M-LOK HG quantity $389.99 Update cart Cart totals Subtotal $1,028.99 Total $1,028.99 Proceed to checkout A 3% convenience fee for credit card purchases will be added, TN. Residents pay 9.75% Sales Tax