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Posted: 1/29/2005 8:14:17 PM EDT
| I have an early CMMG M4 upper which has a DPMS M4 cut 1/7 chrome lined 16" barrel. It also has the cast unmarked FSB. The barrel is mounted to a splintered A Anchor harvey forged upper. The carry handle is also marked with the splintered A. Should this barrel have the F marked FSB to obtain proper zero? I havent shot it past 100 yards, but it seems to be OK with the IBZ. What do you guys recommend. Will longer range shooting show that I need the F marked FSB or am I ok with the current cast FSB? |
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