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I picked up one of these new uppers directly from BCM a few weeks ago. The fit was nice and tight with a DD barrel. It doesn't do anything special, it just does everything better.
It's now sitting on top of the new BCM lower I just got (my first) from Grant (picked it up from my FFL yesterday.)
As far as I can tell,the guys that buy complete uppers will not notice any difference between the two. I can't tell a difference.
So is the only difference the addition of the markings above the gas tube port?
Was read, and beyond the below listed in bold, how much does not apply to a current BCM upper?
• Precision machined to correct Mil-Specs from 7075 T6 Forgings
• Fully Assembled with forward assist, and ejection port cover
• Mil-Std 1913 Rail for mounting optics and accessories
• Machined for use with barrels that use an M4 barrel extension
• Laser etched T-markings for addressing the remounting of optics
• Includes Mil-Spec Forward Assist with heat treated tool steel pawl, with press fit and pinned cap
• Hard Coat Anodized per Mil-A-8625F, Type III, Class2
• Made in the U.S.A.
This receiver will not include the BCM logo etched on the receiver. It is marked “BCM4” over the gas tube hole. MAP is $119.
Owner/Instructor at Semper Paratus Arms
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Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com
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