AR-15 Parts
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Quickview .300 BLK – Belt Fed Upper 12.5″ or 16.5″ Cold Hammer Forged Heavy Barrel
Complete barrel assembly for use with MCR® uppers and our new Belt Fed Upper receiver. Compatible with both systems. (Current expected...
Original price was: $1,119.97.$550.00Current price is: $550.00.In stockSelect options-
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.300 BLK – Belt Fed Upper 12.5″ or 16.5″ Cold Hammer Forged Heavy Barrel
Original price was: $1,119.97.$550.00Current price is: $550.00.Complete barrel assembly for use with MCR® uppers and our new Belt Fed Upper receiver. Compatible with both systems. (Current expected...
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Quickview 100 Round – DUALFEED Fitting – M249/ MK46 Nutsack 5.56mm – Cloth Ammo Bag
100 Round - M249/ MK46 Nutsack 5.56mm - Cloth Ammo Bag
Original price was: $120.00.$100.00Current price is: $100.00.In stockAdd to cart-
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100 Round – DUALFEED Fitting – M249/ MK46 Nutsack 5.56mm – Cloth Ammo Bag
Original price was: $120.00.$100.00Current price is: $100.00.100 Round - M249/ MK46 Nutsack 5.56mm - Cloth Ammo Bag
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Quickview 100% Low Profile Dual-Feed AR-15 Belt Fed 100% lower receiver (LOWPRO-DUALFEED-100)
Transactions done through "Black Widow Arms" on this 100% receiver. 100 % Lower with custom machined to fit M249 MIL-SPEC...
Original price was: $500.00.$350.00Current price is: $350.00.In stockAdd to cart-
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100% Low Profile Dual-Feed AR-15 Belt Fed 100% lower receiver (LOWPRO-DUALFEED-100)
Original price was: $500.00.$350.00Current price is: $350.00.Transactions done through "Black Widow Arms" on this 100% receiver. 100 % Lower with custom machined to fit M249 MIL-SPEC...
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Quickview 
12.5 inch Cold Hammer Forged M4 -M203 fitting – Chrome Lined barrel
12.5 inch Cold Hammer Forged M4 -M203 fitting - Chrome Lined barrel
12.5 inch Cold Hammer Forged M4 -M203 fitting - Chrome Lined barrel
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Quickview 5.56 Full Auto Bolt Carrier Group for AR-15/M-16/M4
AR-15 Bolt Carrier Group with Black Nitride, externally sourced
Original price was: $150.00.$98.00Current price is: $98.00.Out of stockRead more-
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5.56 Full Auto Bolt Carrier Group for AR-15/M-16/M4
Original price was: $150.00.$98.00Current price is: $98.00.AR-15 Bolt Carrier Group with Black Nitride, externally sourced
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Quickview 80% Low Profile Dual-Feed AR-15 Belt Fed 80% lower receiver (LOWPRO-DUALFEED-80)
The only 80 % Lower made to fit M249 feed bag & Nut-Sack attachments as well as standard AR-15 magazines....
Original price was: $500.00.$350.00Current price is: $350.00.In stockAdd to cart-
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80% Low Profile Dual-Feed AR-15 Belt Fed 80% lower receiver (LOWPRO-DUALFEED-80)
Original price was: $500.00.$350.00Current price is: $350.00.The only 80 % Lower made to fit M249 feed bag & Nut-Sack attachments as well as standard AR-15 magazines....
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Quickview 
AR-15 80% Lower Receiver – Premium CERRO Forged – SOLID MAGWEL
CERRO Raw 80 Percent Lower with SOLID MAGWELL Forged & Machined by CERRO, this 80 percent lower is not an...
CERRO Raw 80 Percent Lower with SOLID MAGWELL Forged & Machined by CERRO, this 80 percent lower is not an...
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Quickview 
AR-15 80% Lower Receiver – WITH OLD STYLE FORGING FLASHING included
CERRO Raw 80 Percent Lower Forged & Machined by CERRO, this 80 percent lower is not an FFL item and...
From $55.00In stockSelect options This product has multiple variants. The options may be chosen on the product page-
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CERRO Raw 80 Percent Lower Forged & Machined by CERRO, this 80 percent lower is not an FFL item and...
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Quickview AR-15 80% Matching Black Anodized Upper and Lower Receiver Pair Set – CERRO Forged and Machined
Cerro Raw 80 Percent Lower with matching upper Forged & Machined by Cerro, this 80 percent lower is not an...
Original price was: $150.00.$120.00Current price is: $120.00.In stockAdd to cart-
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AR-15 80% Matching Black Anodized Upper and Lower Receiver Pair Set – CERRO Forged and Machined
Original price was: $150.00.$120.00Current price is: $120.00.Cerro Raw 80 Percent Lower with matching upper Forged & Machined by Cerro, this 80 percent lower is not an...
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Quickview AR-15 80% Matching Upper and Lower Receiver Pair Set – CERRO Forged and Machined
Cerro Raw 80 Percent Lower with matching upper Forged & Machined by Cerro, this 80 percent lower is not an...
Original price was: $150.00.$95.00Current price is: $95.00.In stockAdd to cart-
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AR-15 80% Matching Upper and Lower Receiver Pair Set – CERRO Forged and Machined
Original price was: $150.00.$95.00Current price is: $95.00.Cerro Raw 80 Percent Lower with matching upper Forged & Machined by Cerro, this 80 percent lower is not an...
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Quickview 
AR-15 80% Practice Milling Lower Receiver
Milling Practice Raw 80 Percent Lower ***FOR FIRE CONTROL PRACTICE MILLING ONLY*** 80 percent lower is not an FFL item...
Milling Practice Raw 80 Percent Lower ***FOR FIRE CONTROL PRACTICE MILLING ONLY*** 80 percent lower is not an FFL item...
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Quickview
AR-15 80% Raw Lower Receiver – Premium CERRO Forged and Machined – Rear pocket pre-machined
CERRO Raw 80 Percent Lower Forged & Machined by CERRO, this 80 percent lower is not an FFL item and...
From $55.00In stockSelect options This product has multiple variants. The options may be chosen on the product page-
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AR-15 80% Raw Lower Receiver – Premium CERRO Forged and Machined – Rear pocket pre-machined
From $55.00CERRO Raw 80 Percent Lower Forged & Machined by CERRO, this 80 percent lower is not an FFL item and...
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