Rebarrel to Sabre M4 or BCM Middy?
Looking for opinions here. Due to Massachusett[e]s’ repressive laws, the old federal “AW” ban is still alive and well here. I have several Colt preban lowers that really deserve an upgrade from old A2-style rifle configurations. I also have a RRA upper that has been nothing but a PIA due to the heavy mid-length barrel I have on there (now with a pinned muzzle break due to a YHM screw up). There is nothing wrong with the upper, except it always seems to have the wrong barrel.
Choices (costs do not include shipping):
BCM mid-length upper (1 in 7”, cost $425), or,
Rebarrel the RRA upper to take a Sabre M4 flat top barrel with flip-up front sight (chrome lined, 1 in 9”, new gas tube, cost $318).
I have all the proper tools to do the rebarrel job (receiver block, armorer and other tools, and I have to buy a torque wrench anyway), but I have never rebarrelled a rifle before.
One additional fact: here in Mass it is very difficult to find ammunition; many dealers will not ship here and getting longer/heavier bullet types is a problem. 1 in 7” twists are fine, but most of what is available here is 55 grain M193, which would behave better after 120+ yards in a 1 in 9” barrel. I plan to shoot out to 200 yards. I already have several 1 in 7" rifles.
Any thoughts?
Last edited by Amicus; 01-17-10 at 09:28.
'That whole effort was held together by sweat, shame, and a tiny bit of pride.' -- Son of Commander Paisley
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