AR-15 Rifle build parts, where to start

[MarkCO]

I would be happy if you just told your keyboard to not to run anymore. You seem to know everything, but never actually contribute. Always just sniping from the back. Write something up and actually give some of your pedantic wisdom to the group, Mark. Stupid like yours keeps me busy at work.

Lots of 300 Whisper/Blk carbine barrels out there. Some run fine on the system, some don't. You want it to run, do a pistol length gas system. You want to run the edge and have to fuck with it to get it to run, get a carbine and run the "gotta get it to shoot softer" ideology. If you are never going to take your suppressor off, you might be happy.

I do help people everyday, but you have no clue. I hope you enjoy your self-anointed ignorance.

[KS63]

OK, how does it run with light target loads and subsonic?

I'm fairly certain the A5 is a proprietary system that has multiple buffer weights and a 44 coil round wire spring. What weight buffer are you running?

Off the top of my head I can't remember the buffer weight. I'll take it out and weigh it on an Ohaus scale tomorrow. I'm thinking it was 5.2oz or something. This barrel was designed to run with factory supersonic loads. It may not run reliably with subs or possibly light loads, hence I say you must build the rifle around your goals for it. If you do that, it doesn't matter what gas, buffer weight, spring or load You use compared to the next guy. If I wanted to run light loads or subs, I'd go pistol length. Supers? Carbine gas. Now you throw barrel length in the mix and gas port size...different animal. What size gas ports were in those carbine gas barrels? Early on in the Blackouts rollout, manufacturers were under sizing the port for the gas system length. Everyone thought the caliber was crap.

[SA Friday]

Off the top of my head I can't remember the buffer weight. I'll take it out and weigh it on an Ohaus scale tomorrow. I'm thinking it was 5.2oz or something. This barrel was designed to run with factory supersonic loads. It may not run reliably with subs or possibly light loads, hence I say you must build the rifle around your goals for it. If you do that, it doesn't matter what gas, buffer weight, spring or load You use compared to the next guy. If I wanted to run light loads or subs, I'd go pistol length. Supers? Carbine gas. Now you throw barrel length in the mix and gas port size...different animal. What size gas ports were in those carbine gas barrels? Early on in the Blackouts rollout, manufacturers were under sizing the port for the gas system length. Everyone thought the caliber was crap.

I agree with most of what you are saying here, but why use a carbine gas system and sacrifice the ability to shoot subs and supers reliably? Why chase the ghost of a softer shooting gun when they shoot soft already and sacrifice capability and reliability? Noveske doesn't make a carbine. Ballistic Advantage doesn't either. Daniels Defense only makes the 16" in carbine. Rainier makes both but only 14.5" and 16" in carbine. They make them in pistol too. Pistol length shoots both just fine. Carbine won't without jumping through hoops if ever. The caliber is awesome, but there has been a learning curve. Pistol vs carbine gas systems was one of them.

The A5 buffer if not changed should be 5.3oz (aprox).

[KS63]

Why did I choose a carbine gas system in a 16" platform rather than pistol to shoot subs AND super? I answered your question in my previous post. I spec'd my rifle for supersonic rounds. Period. I don't intend to shoot subsonic ammo. With a .109" gas port and supers, it doesn't need more gas to function. I'm not going to needlessly batter my rifles action when it's not necessary for reliable function. I'm not taking this rifle into battle nor is used for home defense. It's built to kill feral hogs. Do you put 9lb recoil spring in a 10mm pistol just because you know it'll function with factory powder puff ammo and hot handloads? Hell no. Not trying to be combative or anything, just stating again that the rifle needs to suit the purpose.

[SA Friday]

Why did I choose a carbine gas system in a 16" platform rather than pistol to shoot subs AND super? I answered your question in my previous post. I spec'd my rifle for supersonic rounds. Period. I don't intend to shoot subsonic ammo. With a .109" gas port and supers, it doesn't need more gas to function. I'm not going to needlessly batter my rifles action when it's not necessary for reliable function. I'm not taking this rifle into battle nor is used for home defense. It's built to kill feral hogs. Do you put 9lb recoil spring in a 10mm pistol just because you know it'll function with factory powder puff ammo and hot handloads? Hell no. Not trying to be combative or anything, just stating again that the rifle needs to suit the purpose.

OK, I get that you made a specialized rifle. It's definitely not what I would recommend to someone reading a thread about where to start with an AR build. See where I'm coming from...