For $10 more dollars, you can get this: http://www.bravocompanyusa.com/SureFire-P2X-Fury-Tactical-Single-Output-LED-p/sf-p2x-a-bk-eag-click.htm

 

Note:  Looks like that light is currently on sale: $121.

I was researching components today and I fear I'm falling on to the AR Build Mobius Strip.  I could use some help.

It started with trying to find a buffer kit and prices.. that led to me trying to compare the H Buffer with the Spikes ST-T2..  THAT got me comparing carbine vs mid-length gas systems.   While I haven't bought much yet and I certainly have time for this research.. I was really hoping it would REDUCE the number of questions, not INCREASE them.

 

Originally I thought I would want a 14.5" barrel (+ Break==16" Total) with carbine gas system and therefore a carbine or slightly heavier ST-T2 buffer.   Is there anything wrong with that configuration?  Would something else, like a mid-length gas, or H buffer be "preferable"?  And under what conditions?

I have rifles with both carbine gas systems and mid length gas systems. Subjectively the mid length has softer recoil and is back on target faster. Objectively the midlength is more reliable and has reduced wear on the components with a longer sight radius (assuming a traditional front sight gas block on both rifles)

 

When I grab a rifle out of the safe do I care which one I grab? No.

 

If I had a choice, I would pick a mid length system. If I had to run a carbine system instead (which I do as both of my issued work guns are carbine length) it is no big deal. Either will get the job done as long as I do my part. And both are boringly reliable.

 

Don't get all wrapped up about buffers. Just get an H buffer and be done with it. It will run in either length. (Excluding a rifle length receiver extension)

If you don't have a choice carbine is fine

If you have the choice mid is better for everything he explained...

Thanks!

 

Don't get all wrapped up about buffers. Just get an H buffer and be done with it. It will run in either length. (Excluding a rifle length receiver extension)

 

Yeah.  One of the problems I've found is its hard to tell what decisions to get wrapped up about, and which ones really don't matter.  Reading online helps, but there are always folks that care about EVERY decision either because it impacts their use-case or they're just OCD.

 

My plan is to try to get the pieces to complete the lower first and shopping around for those components.  I'm trying to make sure I understand how decisions I make for the lower will impact/limit options for the upper..  LIke: "If you get a carbine buffer you have to have a carbine gas system"..

When you say "buffer" what are you referring to?

 

The weight that moves with the spring is the "buffer."

 

The spring is an "action spring".

 

The tube it all rides inside that has the stock attached to it is the "receiver extension".

 

You can use a carbine length receiver extension, with a carbine length action spring with a standard, H, or H1 buffer with a mid length or carbine length system with no issues.

 

You can use a rifle length receiver extension, with a rifle length action spring and a rifle weight buffer with a mid length or carbine length gas system (you may run into some issues with a carbine length gas system and a rifle length receiver extension, but mine ran fine)

 

You can alter the functioning of the rifle a bit by playing with the buffer weights to adjust the dwell time of you have a rifle that is being picky with ammo or is having other function problems.

 

I use H buffers in all my rifles with a cabine length receiver extension regardless of it is a mid length or carbine length gas system.

When you say "buffer" what are you referring to?

 

The weight that moves with the spring is the "buffer."

 

 

Thanks for the info! I knew the buffer was the part with the weight but thought the standard weight was also called "carbine".

 

Based on the info, I'll be flexible but look to use H buffer with either carbine or midlength gas.

Merry Christmas to me. Almost finished. Sorry for potato picture, I was in a hurry yesterday.