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Old 09-23-2009, 5:06 AM
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RainierArms RainierArms is offline
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Join Date: Jun 2006
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Default Rainier Arms UltraMatch Billet Uppers

Description:

CNC Machined from solid Billet 7075 Aluminum. If you want to build a high end UltraMatch Upper, look no further than the Rainier Arms UltraMatch Billet Upper.

The most critical features are:

* Parallelism between the picatinny rail, main center bore and the centerline of the mounting lugs
* Perpendicularity between the centerline of the lugs and the barrel mating face (at the front of the threads)
* Flatness of the barrel mating face

We are holding .0003 or better on all of those measurements. Competitor uppers are between .001 and .003 on the perpendicularity and parallelism.

Configuration:


* A3 Flat-Top
* A4 Flat-Top - w/M4 Feedramps


PRICE: $227.95














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