Re: AR 15 Gas/Gas Piston
I own 2 of them.
Piston guns can be broken down into roughly 3 categories
1. Guns that have been designed from the ground up to be a piston operated gun, AK, FN SCAR, Bushmaster ACR.
2. AR Variants that have been tweaked over the years with their own proprietary piston setups. LWRCI, POF, PWS, Addax,
3. Piston conversion Kits. Kits that you modify your current DI gun with a conversion kit. Adam Arms, CCMG, Osprey Defense
With that being said you need to identify your needs and wants. #1 are going to be expensive 2k+ and the parts are going to be proprietary.
#2 Also going to be expensive 2k+ Most of the AR parts will be interchangeable, the piston setup and rails will be proprietary, Both POF and LWRCI get awesome reviews. The LWRCI seems to have better CS.
#3 These are taking the market place by storm. You pretty much take your DI gun and either replace the gas block and add their piston system, or in the Osprey Defense you just remove the gas tube and install their kit with your existing gas block or FSB.
I chose route #3 because of cost and the ability to go back to D.I. If I decided Pistons were not for me.
I used the Adams Arms kit for a conversion I did worked flawless, but I got rid of it, I did not like the look of the Gas block and I prefer a low profile gas block with a rail covering gas block. (preference)
So I tried the Osprey Defense kit (simple drop in design with no small springs etc) . I have close to 3500 rounds through my 2 kits. This is what I have experienced so far. My guns stay cleaner like you cannot believe. After 1000 rounds it looks like I have barely shot it other than the bolt face and chamber that still gets dirty but not as bad. The recoil pulse is different with a piston gun, It might be a tad more, but come on its a 5.56 already.
I have to say I love my new piston setups. Is it a better system that is debatable, from both sides. With piston systems you have more parts when you have more moving parts and springs etc. More shit is going to break... but with that being said. It runs cleaner, cooler so life should increase on other parts. I have never had any issues with my D.I. guns or my Pistons. I just prefer not having so much grime when cleaning and the piston setups do this and they do it well.
If you have any ? feel free to ask.
Osprey under the rail.