Quote:
Originally Posted by Archangel
Not all of us are young single bucking studs like you anymore. Some of us have crumbsnatchers to feed.
Last I checked, LWRC's price for a conversion was still over $1,000 with my MIL discount and (unless I am misinformed) the LWRC system did not give me an option for gas adjustment when using a suppressor.
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Archangel,
You are correct on the gas adjustment. Not to say that it's perfect, but the piston system is self regulating. When using a suppressor, the gas system on any gun, direct impengement (DI) or gas piston (GP), will overcharge gas into the operating parts. This increased blowback goes unregulated in a DI gun causing severe blowback into your operating parts (bolt, carrier, all the way out the ejection port and charging handle) and into your face. The beauty of the GP designs (LWRC, HK, POF and even PWS) is that they all vent at the piston.
The LWRC design is a self regulating/ self cleaning piston cup. This is from Darren at LWRC:
"Pressure builds over microseconds. The spring prevents the system from opening until just enough pressure is built to overcome the mass and all of the action springs. Once it pushes off, 6/10ths of an inch, it vents all excess in a staged vent and dump.
Cyclic rate depends on gas port dimension and the can (suppressor) volume."
Broken down Barney Style: You cannot overcharge the GP in a LWRC rifle......period, either suppressed or un-suppressed. A DI gun will spit carbon all over you and will increase your mean rounds to failure rate.
Adjustable gas systems are a necessity for DI guns to increase reliability and function of the massive differences in ammunition available for commercial shooters. Military uses ammunition that is fairly consistent burning for each application it is designed for. Anyone could tell you that de-linking ammo to use in a magazine or bolt fed platform will change the rates of fire, and accuracy. This gets worse as you step up calibers since the chambering of every weapons platform is different and the tolerances are spread over ammo, chamber and bore characteristics.
There are many on this board better qualified to cover this topic more accurately than I, so I digress. There is no need for an adjustable gas block on GP guns only DI.
Hope you are all still interested, we are still doing conversions, and we are still helping out. The company is setting up for SHOT, and preparing to move into a facility that will help them spit out more rifles per month than they can now. We've reached critical mass on orders vs. production. Demand is great for the system, unfortunately 4 guys on the production line are prematurely balding and getting ulcers trying to get these in the hands of the end users.
In the near future the company will only be providing direct to vendor (distributors, and select companies) sales and is slowly weening off individual sales. The staff that is in place isn't able to conduct follow-ups and answer questions of all of the individuals out there, so we are actually adding the middle men.
FWIW