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Posted: 9/27/2008 8:36:51 AM EDT
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Who makes the best Gas Piston Retrofit kit. Trying to decide on which MFG to go with. Thanks |
The inside of the upper stays much cleaner than a DI gas system. The downside is that the inside of the upper handguard gets dirtier since the gasses from the piston housing vent into this area. Don't know about clearance with any other handguard other than the one provided with the kit. |
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Primary Weapons Systems Gas Piston Retrofit kit is the best, and we professionally install them. Check out our website for more info: Addax Tactical Gas Piston Retrofits (PWS) Since there are quite a number of variances in the different manufacturers uppers, it is best to have a Gas Piston System Retrofit installed by a professional with all of the tools necessary to perform the installation properly and to ensure functionality. We also head space and test fire each upper to ensure you get a Gas Piston Retrofit that works. Here are some pics of the PWS Gas Piston Components. We also build brand new Gas Piston uppers using the PWS Gas Piston system called the Addax GPU. We only use brand new high quality components in our brand new Gas Piston Upper builds. Addax GPU Webpage    I hope this helps, Thanks, Chris |
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Thank you very much. I was leaning towards a PWS. In their system(PWS) is there any bolt carrier cant while in operation?( Ive been a guinea pig on too many new products) Any out of the ordinary wear and tear. Is the PWS ajustable for use with a suppressor? I do like that the handguard do not have to be removed to access the system. |
That shouldn't be a problem for most who post here who would own a piston conversion. At the wooden or cement bench where all the shooting is done stateside, it should be no problem getting through 10K rounds with a piston conversion. Anyone in your situation considering a piston conversion, is a fucking idiot. As I said before: For the toys state side, at the end of the day the $500 piston conversion will work every bit as well as the $10 gas tube it replaced. |
Perhaps you could share with us the actual experiences you have had with one or more of the available kits. |
With all Gas Piston Systems you will see a degree of carrier tilt and deflection, and with the PWS system, this is minimized due to the use of the fixed op-rod design. I have 10 different test uppers in my shop, and one of them now has a little over 6000 rounds, and we have seen only minimal wear (surface wear) in the upper, and not anything that is going to cause the upper to fail or affect its structural strength or integrity. Yes, the PWS system is adjustable with 2 settings, positive and negative (for shooting with a suppressor). We have been very happy with the PWS system and they have really designed a high quality Gas Piston System and even made some minor design improvements along the way thanks to the feedback from us and several other dealers, plus from some of their own product development. You will be very happy with one of our ADDAX GPU uppers, or a retrofit. Thanks, Chris |
OK, I'll take the bait... Ares Defense did address carrier tilt and when the USPTO publishes our patent application for the Black Lightning drop-in piston kit, then you can see exactly how it was addressed. We did not approach carrier tilt by using the "dog-knot" (circumferential ring of larger diameter on the back of the carrier, some companies using "ski's" and similar methods for limiting carrier tilt) approach on the rear of the carrier for a very good reason, and here it is: There are literally millions of AR15/M16's in the global marketplace. They have been produced by many different companies under many different manufacturing/QA guidelines. If a company's approach to fixturing the lower receiver forging for machining is substandard (and many are), then the receiver extension tube thread in the lower receiver may not be concentric the the bore axis, and accordingly, nor will the carrier be concentric to the receiver extension tube. So, if a receiver extension tube's concentricity to the bore-axis is out only a small amount, or if there is any angularity (even a very small amount), then the "dog-knot" approach to carrier tilt will cause the carrier to bind in the receiver extension tube somewhere in it's 3-3/4" stroke length. Did you ever wonder why a carrier's diameter is reduced from a nominal .995 to .930 along the portion that travels in the receiver extension tube? If you have, then now you know why. Having said that, remember that our kit (now being produced by Bushmaster under exclusive license) retrofits to most OEM carbines. However, some manufacturer's have oversized passage in the upper receiver and tilt may show more. The fix to this is to use a quality manufacturer/supplier for your upper receiver; i.e.: a company that exercises quality control and establishes/enforces reasonable tolerances in the components they produce. Finally, you want to know which "drop-in" piston kit will go 10,000 rounds in one week and so I'll tell you that too. We fired our patent-pending Black Lightning kit (the first true "drop-in" kit) at Bushmaster's facility and exceeded 10,000 rounds in one day, with no malfunctions! If you have your doubts, view the inside front cover of Bushmaster's 2008 catalog where they reiterate the point. Also, some operators in Afghanistan have been employing Black Lightning kits in their M4's for over 2-1/2 years! Do you really think they would be betting their lives on our Black Lightning "drop-in" piston kits on a daily basis if they were experiencing any problems with it? I don't, and I don't believe that most reasonable people would think so either. |
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dude -- you'd be surprised the shit you see that some people who should know better use as weapons or on their weapons, I dont take anyone using something as gospel that it works. If I recall correctly you need to shave a great deal of steel (okay Aluminum) from the rail - where the PEQ would mount at 12' to use your kit. |
So the Bushmaster kit addresses the tilt? |
If they are following our patent-pending bolt carrier design, then yes, Bushmaster's kit also addresses carrier tilt. |
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Quoted:
Quoted:
anybody seen this device for anti tilt http://i162.photobucket.com/albums/t244/seth_100/DSCN2011.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1925.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1924.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1923.jpg eh? It's a buffer with a nipple. The nipple fits in the hole in the back of the bolt carrier to 'hold up the bolt carrier' as it travels back into the receiver extension. Really an ingeniously simple design. |
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Quoted:
Stay away from the drop in kits –– if you want a piston go Hk or LWRCI The others don't address carrier tilt, or pin in the gas block. Show me a Piston Drop in that can fire 10k of rounds in a week and I will revise my feelings.... most shooters will not go through 10,000 in the lifetime of the rifle, much less a week. 99.9% of shooters are not in combat, we shoot for fun and or self defense. |
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Quoted:
anybody seen this device for anti tilt http://i162.photobucket.com/albums/t244/seth_100/DSCN2011.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1925.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1924.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1923.jpg The Anti (carrier) Tilt Buffers work great, eliminating tilt by about 90%. Im going through the the coating and material finishes gauntlet as we speak, also have been making them with different materials as well. For those who havent seen it, I started a thread on this product. Im currently going through the patent process with this concept, heres a link... http://www.ar15.com/forums/topic.html?b=3&f=4&t=410803&page=3 Thanks guys. S.H. |
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I am currently testing one. I must say that I am very impressed with the buffer!  Quoted: Quoted: anybody seen this device for anti tilt http://i162.photobucket.com/albums/t244/seth_100/DSCN2011.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1925.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1924.jpg http://i162.photobucket.com/albums/t244/seth_100/DSCN1923.jpg The Anti (carrier) Tilt Buffers work great, eliminating tilt by about 90%. Im going through the the coating and material finishes gauntlet as we speak, also have been making them with different materials as well. For those who havent seen it, I started a thread on this product. Im currently going through the patent process with this concept, heres a link... http://www.ar15.com/forums/topic.html?b=3&f=4&t=410803&page=3 Thanks guys. S.H. |
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