Colt LE6921 Complete M4 Upper Receiver Group (5.56mm, 14.5")
Colt's Manufacturing LE6921 Mil-Spec Upper is nearly the exact same M4 upper receiver group in use with the US Military. This is a great base upper receiver group fro your next SBR build.
- Chambered in 5.56 NATO
- Chrome Lined Chamber & Barrel with 1:7 RH Twist
- Barrel Steel: 4150CMV or Mil Spec Equivalent
- Magpul Flip Up Rear Sight
- M4 Contour Barrel w/M203 Notch
- Standard Sling Swivel
- Full Auto Bolt Carrier Assembly included
- USGI Charging Handle included
- Double Heat-Shield Hand Guards included
*Not Pinned, ALL NFA RULES APPLY
MADE IN USA
*Fixed Shipping cost of $13 in order to provide Priority with Signature Confirmation.
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