Colt 14.5″ 1/7 M4 barrel, new take-off from 94/95 production factory test-fired only upper.
Features include: chrome lined barrel, A2 flashhider, handguard cap, front sight base with bayonet lug, A2 front sight post, and barrel nut (no sling swivel or delta ring kit).
Markings: 51, O stamp, barrel extension 4 for M4 feedramps, C MP 5.56 NATO 1/7
Price $319 Please call or email to order – 608 558-6201 or email@example.com
Optional: Delta ring kit can be added for $20