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Old 01-25-2015, 11:54   #1
Z32MadMan
Junior Member
 
Join Date: Apr 2008
Posts: 13
Sig556 Improved Gas Valves

I recently purchased a Sig 556 Pistol with the intent of turning it into an SBR project. Took it out to the range to break it in and the thing is WAY over gassed. Brass is ejected almost 40', the case mouth is destroyed, body is dented, and the ejector is nearly tearing the cartridge rim off.

I do my research and find out this is pretty much common place for the rifle. Sig customer service doesn't consider it an issue and won't do anything about it. There is a little know solution of drilling new gas ports into the gas valve and retuning the pressure to a reasonable level. The issue there is that the part is made out of very hard steel and the quotes I got from my local machine shops are all over $250.

So I say enough is enough and decide to take this project on myself. I am in the process of tooling up and I have secured a small lot of original Swiss Sig SAN gas valves to offer these to other people who are having this issue.

The new valves will keep the rifle from destroying brass (for those who reload) and this is ideal for those who are running suppressors on their Sigs (suppressing the rifle exacerbates the problem). It also prevents the bolt carrier from slamming into the back of the lower receiver with unnecessary force, so it smooths out recoil and saves wear and tear on the gun.

If anybody is interested, I have included an order form below that you can fill out to hold a spot in line. Email the form to the address written on the bottom of the order form.

As of right now I have about 8 other guys who are placing orders. Time line is about 4-6 weeks right now to allow for the rest of my tooling to show up, the Swiss parts, and to allow for some testing before they ship.

Price will be $150 shipped or $105 to have your own valve drilled and shipped back.

I will offer a $40 core charge refund for those who decide to purchase a new valve and ship back your original.

If you cannot print, fill out, and rescan the order form to me, you can just type the information into an email.

If you have any questions, please feel free to post them.

Cheers!
Chris

Black Rifle Forum

Last edited by Z32MadMan; 01-25-2015 at 11:58..
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