runs perfect w/ various ammo (M193, Black hills, and walmart winchester white box 55 gr) no more than 400 rounds fired.
* The upper is large hole front pivot COLT, with feedramps professionally cut and polished, aligning flush to the M4 bbl extension. Total barrel length is 16.25"
* No bolt carrier group or charging handle
- Colt 1-9 HBAR 14.5"
- KAC MRE float forend
- KAC flip up front sight gas block (.750), pinned
- KAC QD flash hider (pinned and welded)
- PRI Fatboy gas tubeIt is the UPPER ONLY, pictured here in these photos, please note that the aimpoint and mount are NOT INCLUDED.
Email me if you have questions.