Snow_N_Surf

Yeah, a pistol might be my next project, but likely an AR-15. I was thinking this gun would compliment my 16" AR-15 with a higher caliber round and longer range. Also, a lot of extra hoops to jump through here in F'd up Washington to build a pistol. Likely moving to a more friendly 2nd Amendment state first. Would going with the rifle length gas system help to mitigate this? 18" seems to be the transition length where manufacturers are not quite sure which gas length is ideal. I believe the Faxon barrel I'm eyeing has a rifle length gas system, but if that's not ideal I can go a different route.

Lol, I'm guilty. Can never just go with off the shelf parts, I've always got to build things better and higher performance. Even on my AR-15 build, had to go with the Gibbz side-charger upper even though it added weight, just because IMO it's a better design. Parts list atm: Live Free Armory Receiver set - burnt bronze Faxon 18" pencil barrel - only 32oz, so saving weight here Odin o2 Light 15" handguard Toolcraft or TI BCG Aero LPK Rise Armament drop in trigger burnt bronze buffer tube Fab Defense Gradus, Ergo or Armaspec rubber grip buttstock TBD I can afford to build what I want, and with all the political BS atm I figure I can't go wrong putting the money into the project. Just finding the parts is the challenge, but I've got time and patience.

I mean, a buffer tube's a buffer tube, just have to get the right length, right? So unless there's something special about that buffer & spring, I don't see any reason not to use any quality brand.

Yeah, there's always a give and take, I get that. That's why I'm not looking to use super lightweight items elsewhere, but less rotating mass makes a lot of sense to me. As long as you can get it to cycle correctly. I might hunt elk & deer.

I can live with that. Already ordered the 308 receiver and I want to stick with the commonality of that round. I would think the captured springs, as a stand alone product, if anything, would be more reliable.

I looked on their website but it didn't provide the length of the buffer tube, weight of the buffer or coil rate. I'd like to run a mil-spec buffer tube that comes in the color I want, if possible, so that kit would not be my first choice. EC0120 -Tungsten Weight Buffer (x3) - If I'm understanding this correctly, this would be a H2, H3, ect? The easy solution is the standard BCG & buffer. My goal here is a better performing firearm, so whatever products help to accomplish that is what I'm after. I'm not going to be running thousands of rounds through the gun at high rates of fire so I'm not concerned if reliability decreases in that scenario. I just weighed my AR-15 and using high quality and lightweight (where applicable) components it still weighs 8lbs. The goal of this build is lighter then average weight and a lessened recoil that will surprise the shooter compared to your avg AR-10.

I've been searching all over the internet but haven't found the answers I'm looking for. If you know where they can be found please direct me there. I also plan on contacting the manufacturers or suppliers if I can find time during the busy work week. The goal is to build a smooth operating, lighter then average weight AR with reduced recoil. This is not a race gun and the primary use will be target practice & hunting. I've previously built an AR-15 so I know just enough to be dangerous :). Proposed pertinent parts: 18" barrel - leaning towards Faxon Pencil barrel, could go 16" or 20" if necessary Captured buffer spring such as Armaspec or JP Enterprises - for recoil reduction, sound mitigation Possibly a titanium BCG - my research indicates that the TI BCG's avg about 12oz, standard BCG's avg apx 18oz, for a reduction of 6oz of reciprocating and overall weight A good muzzle brake - leading contenders are the Precision Armament 4-72 or POF 3G. The 4-72 lead some comparison shootouts I found, but I'd like to find reviews of the 3G. Will also consider others Adjustable gas block - insurance to properly adjust cycling if need be I have a Live Free Armory Receiver Set on order but I haven't found much information on them. Anyone have experience with them? I will not be running a suppressor. My main question is if I go with a titanium BCG, what mass buffer, length buffer tube, and length gas system do I need to run? As I recall, on the AR-15 when running a lower mass BCG you have to run a different mass buffer. Although, if this requires running a heavier weight buffer it kind of defeats the purpose. I would assume, with for example the JP stuff, they would have a BCG and buffer that work effectively together. Although I'd prefer to go with the Armaspec buffer just based on cost. One might be able to adjust the cycling rate with different buffer spring rates as well, if available and necessary. The second part of the equation is the buffer tube. There appears to be two(?) standardized lengths, the 7" mil-spec and 7.75" 308 specific? Which one would be required for this set up? Last part of the equation is the gas system length. Would this require an 18" barrel with a mid or rifle length gas system? What is the common or ideal buffer to run with a TI BCG? Which makes the biggest improvement to recoil, the captured buffer or the TI BCG? Just running the captured buffer and a std BCG seems to be pretty straight forward - std mil-spec buffer tube and call it good. Only question would be ideal gas length on 18" barrel? I'd prefer to figure out the ideal, tried and true, combination up front and only have to order parts once. But it wouldn't be a major ordeal If I had to do some minor tuning like play with buffer spring rates or ect to get it running efficiently. I'm sure somebody has built a similar rifle out there. Thanks, for the forthcoming advice!