Colt M4 LE6921EPR Upper Group 14.5in with BCG
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The Colt ERP, or Enhanced Patrol Rifle, line of M4 Upper Receivers that come with Centurion Arms free float M-LOK® handguards, making for a convenient and practical upper receiver ready to drop on your AR-15 lower receiver.
Available in 3 different barrel lengths, each is chrome lined, has a 1-7 twist, is button rifled, and has a phosphate finish.
You can also choose between complete, which includes a M16 bolt carrier group and charging handle or stripped which does not include those items.
All NFA rules apply.
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5.56 mm NATO
Black
Anodized
14.5"
AR-15
1/2-28
Complete
1-7