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Due to an extraordinarily high order volume and demand for our products, some items may require additional time for processing and shipment. THANK YOU FOR YOUR PATIENCE AND UNDERSTANDING WHILE OUR TEAM REMAINS FOCUSED TO FILL YOUR ORDER.

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Rifles
- MCR
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Pistols
- SCR Pistol 5.56
- SCR Pistol 300 BLK
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- MCR
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Lowers
- SCR Rifle Lowers
- SCR Pistol Lowers
Parts and Accessories
Ammunition
- 5.56 x 45mm NATO
  - LC M855 (M27 Linked)
- 7.62 x 51mm NATO (.308 WIN)
  - Federal Lake City M80 Ball (M13 Linked)

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Rifles
- MCR
- SCR
Pistols
- SCR Pistol 5.56
- SCR Pistol 300 BLK
Uppers
- MCR
Lowers
- SCR Rifle Lowers
- SCR Pistol Lowers
Parts and Accessories
Ammunition
- 5.56 x 45mm NATO
- 7.62 x 51mm NATO (.308 WIN)

MCR Upper Receiver Parts

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MCR® Belt-Feed Cover Conversion Kit

Regular Price:$2,799.99
$2,799.99
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MCR Quick-Change Barrel Handle Assembly (15035)

Regular Price:$135.99
$135.99
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MCR Ejector (15058)

Regular Price:$6.99
$6.99
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MCR Bolt Rehab Kit (15019)

Regular Price:$146.99
$146.99
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MCR Ejector Spring (15059)

Regular Price:$4.99
$4.99
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MCR Cam Pin (15073)

Regular Price:$22.99
$22.99
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MCR Firing Pin Retaining Pin (15072)

Regular Price:$4.99
$4.99
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MCR Firing Pin (15071)

Regular Price:$17.99
$17.99
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MCR Bolt O-Ring (15112)

Regular Price:$8.99
$8.99
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MCR Extractor Spring (15070)

Regular Price:$8.99
$8.99
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MCR Extractor (15068)

Regular Price:$56.99
$56.99
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MCR Belt & Magazine Dual Feed Bolt Carrier Assembly, Full-Auto (15064)

Regular Price:$1,046.99
$1,046.99
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MCR Belt & Magazine Dual Feed Bolt Carrier - Stripped, Full-Auto (15062)

Regular Price:$523.99
$523.99
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MCR Feed Roller Assembly (15067)

Regular Price:$255.99
$255.99
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MCR 16.25" Adjustable Heavy Barrel (BBL-002)

Regular Price:$698.99
$698.99
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MCR 12.5" Adjustable Heavy Barrel (BBL-006)

Regular Price:$698.99
$698.99
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