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Posted: 9/29/2016 11:22:53 PM EDT
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Cross Machine Tool - UHPR MOD 1 Handguard
*** Click on the link below for ordering info and pricing *** Description: Cross Machine Tool's Ultra High Precision Rails are engineered to Perform. * Strength- While not heavy, the UHPR series handguards shine in the strength department. Unlike competitor rails that are only marginally lighter, that feel spongy in the grip hand when squeezed or when side loads are applied to the forward rail, the UHPR stands firm. * Accuracy- UHPR series products are machined to exacting tolerances, by experienced toolmakers, at our industry leading Multi-Axis CNC machining facility never outsourced to the lowest bidder. * Function- The UHPR series products succeed in providing function that is demanded by professional users of todays Modern Sporting Rifles. No fluff or gimmicks, just straight forward functional value in a great looking durable product. * Value- As with any Cross Machine Tool product, value is engineered into the product. * Design- UHPR series products are engineered to provide a durable, trouble free service life. UHPR series rails are compatible with Mil-Spec forged uppers & most billet uppers. * Installation- UHPR series Rails are designed to also provide trouble free installation. Barrel nut does not require timing with gas tube, No shimming of barrel nut required. * American Made- All Cross Machine Tool Products are manufactured Proudly in the U.S.A. *** CLICK HERE to take me to the Rainier Arms website *** 
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I bought one of these and I think they need some improvements:
- It doesn't fit standard upper receivers without filing the anti rotation tabs - The small amount of picatinny was out of spec (too wide) - It would be helpful to have a tiny relief cut at the bottom rear of the tube to allow fitment with a wider range of lower receivers |
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Quoted:
I bought one of these and I think they need some improvements: - It doesn't fit standard upper receivers without filing the anti rotation tabs - The small amount of picatinny was out of spec (too wide) - It would be helpful to have a tiny relief cut at the bottom rear of the tube to allow fitment with a wider range of lower receivers 
Wonder if you got a bad one; mine doesn't have any of those issues. |
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Quoted:
Quoted:
I bought one of these and I think they need some improvements: - It doesn't fit standard upper receivers without filing the anti rotation tabs - The small amount of picatinny was out of spec (too wide) - It would be helpful to have a tiny relief cut at the bottom rear of the tube to allow fitment with a wider range of lower receivers http://i.imgur.com/RdH1lGUl.jpg Wonder if you got a bad one; mine doesn't have any of those issues. what do you know..... 
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Quoted:
http://i.imgur.com/RdH1lGUl.jpg Wonder if you got a bad one; mine doesn't have any of those issues. Quoted:
Quoted:
I bought one of these and I think they need some improvements: - It doesn't fit standard upper receivers without filing the anti rotation tabs - The small amount of picatinny was out of spec (too wide) - It would be helpful to have a tiny relief cut at the bottom rear of the tube to allow fitment with a wider range of lower receivers http://i.imgur.com/RdH1lGUl.jpg Wonder if you got a bad one; mine doesn't have any of those issues. Well, I tried contacting them to find out and never could get a response. It would not fit four different upper receivers, and the picatinny most certainly measures too wide (which I checked after finding that a couple different accessories didn't fit). |
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Quoted:
what do you know..... Quoted:
Quoted:
Quoted:
I bought one of these and I think they need some improvements: - It doesn't fit standard upper receivers without filing the anti rotation tabs - The small amount of picatinny was out of spec (too wide) - It would be helpful to have a tiny relief cut at the bottom rear of the tube to allow fitment with a wider range of lower receivers http://i.imgur.com/RdH1lGUl.jpg Wonder if you got a bad one; mine doesn't have any of those issues. what do you know..... *click* 
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