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John Hwang
25 June 2009, 13:32
Rainier Arms Manufacturing, LLC is releasing a Billet Upper in the next 30-60 days. Pricing is undetermined at this time but should be in line with other billet offerings in 7075 around $225-250 Retail.

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. We will offer these in A3 & A4 configuration.


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.





http://www.rainierarms.com/img/shop/product/9f39eadcbf4cd1f618953498eaae1405.jpg


http://www.rainierarms.com/img/shop/product/50a0656bb31dbc8fcee4c471bca688dd.jpg

http://www.rainierarms.com/img/shop/product/f90bf5728eb96bb7d9fe32114871a3c4.jpg

John Hwang
29 July 2009, 11:25
Eugene's AR built using one of Rainier Arms Pre-production Billet Uppers.

John Hwang
11 September 2009, 15:58
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


http://www.rainierarms.com/img/shop/product/a220f45c13ca2588b44d44ce69fb3afd.jpg (http://www.rainierarms.com/?page=shop/detail&product_id=1611)



http://www.rainierarms.com/img/shop/product/89d3579068314d905e7f10859e6ef641.jpg (http://www.rainierarms.com/?page=shop/detail&product_id=1611)



http://www.rainierarms.com/img/shop/product/ebb904a7272f941c0992b72f0e5f00f8.jpg (http://www.rainierarms.com/?page=shop/detail&product_id=1611)

John Hwang
25 September 2009, 11:38
Rainier Arms UltraMatch Billet Upper w/ MEGA Billet Lower

http://album.weaponevolution.com/UM_Upper/MEGA-A.jpg

http://album.weaponevolution.com/UM_Upper/MEGA-B.jpg




Rainier Arms UltraMatch Billet Upper w/ POF GEN2 Billet Lower

http://album.weaponevolution.com/UM_Upper/POF-A.jpg

http://album.weaponevolution.com/UM_Upper/POF-B.jpg




Rainier Arms UltraMatch Billet Upper w/ SunDevil Billet Lower

http://album.weaponevolution.com/UM_Upper/SD-A.jpg

http://album.weaponevolution.com/UM_Upper/SD-B.jpg




Rainier Arms UltraMatch Billet Upper w/ Tactical Innovations Billet Lower

http://album.weaponevolution.com/UM_Upper/TACINNO-A.jpg

http://album.weaponevolution.com/UM_Upper/TACINNO-B.jpg




Rainier Arms UltraMatch Billet Upper w/ TSK Billet Lower

http://album.weaponevolution.com/UM_Upper/TKS-A.jpg

http://album.weaponevolution.com/UM_Upper/TKS-B.jpg