Thread: Fun future AR-15 project
8/20/2013 11:22pm, #11
Does this make dwkfmy, our gun addiction co-enabler?
8/21/2013 9:13am, #12
This is going well... This is my first AR. I got most of the lower assembled this morning, and it just clicked for me (no pun intended) during a function check what the purpose of the disconnector is. Learning is fun.
8/21/2013 12:25pm, #13
8/21/2013 1:07pm, #14
Good tip, I have been very careful to not do so, since the hammer in its fully forward position presses pretty hard on the bolt catch - it just looks like it could do damage, so I decided not to try.
8/22/2013 11:09am, #15
8/22/2013 11:33am, #16
You may be able to see I had a little trouble with the trigger guard roll pin, the starboard side mushroomed on me and I couldn't get it all the way in, I'll probably replace that soon, but it's not a hinderance, just unsightly.
I'm not thrilled with the DPMS LPK, but that could just be my lack of experience talking.
The mag is an el-cheapo Thermold, which I don't intend to use for other than a vise block. Way poor quality on that thing.
8/22/2013 4:45pm, #17
The trigger guard pin holes tend to be very tight on most lowers. Some aren't though. The DPMS LPK is your run of the mill cheapo LPK. As long as you can get all the parts in, it is all good. Yours should feel substantially better than in lesser quality lower receivers though.
Unfortunately my shop gun fire control group is going to be even more hodge podge. We'll be buying some surplus (e.g. pulled from decomissioned LE M16A1's) trigger parts to make a select fire rifle. But I don't see the point of getting the whole set for a beater test gun, so we're replacing select parts and keeping the rest. Usually that isn't so good for trigger feel. lol
9/06/2013 3:22pm, #18
I don't think I apologized for hijacking your thread, Cassius. I'm sorry. But, since I've already started documenting my build here, no reason to move to another thread...
My stock finally came in. $32.99 from PSA for a Knoxx Blackhawk! 6-position mil-spec kit (includes tube, carbine-weight buffer, spring, slap plate, and castle nut). I was a little concerned that it might be poor quality, but I'm quite pleased with it.
My question to dwkfym or the community at large is what buffer weight should I use? I know there are varied opinions out there, as well as other technologies like hydraulics. I'm looking at this build being a 5.56 middy, assuming I stumble into the right barrel at the right price.
9/06/2013 5:21pm, #19
As for the buffer weight question: Assuming you are planning on going with 16 or under and aren't going to be shooting extremely light or extremely heavy loads, I would suggest just using what came in the Blackhawk kit. I know people who have used oddball stuff like H2 and 9mm buffers to supposedly reduce recoil, but I personally wouldn't mess with the buffer you got with your kit unless:
1.) Your rifle isn't feeding or ejecting properly and you rule out the other common causes for this problem. It is fairly easy to trace this problem back to your buffer/spring setup. Just google "ar15 buffer not feeding (or ejecting)" and you will find about a billion threads and youtube videos on the subject.
2.) You find the recoil of your AR15 to be intolerable. This is highly unlikely, since you are building a 5.56 AR. If you do happen to find this to be the case, please message me. I will gladly send you my mailing address so you can ship your AR15 to me along with your man card.
3.) You get a lot of experience with your weapon and decide to start tinkering with it for optimization purposes. Nothing wrong with this, but it doesn't mean you should immediately purchase a crazy buffer/spring setup since yours is already perfectly functional.
On to the topic of hydraulic buffers: They have their uses (almost entirely related to reducing weight while still allowing you to fire full auto reliably), and were all the rage for a bit. Bottom line: unless you are planning on making a full auto AR, I don't recommend you bother. Even if you were to make a full auto AR, a standard buffer/spring combo would most likely be more reliable.
So that's my advice on buffers. I am normally a pretty plain jane type gun person, but I did buy the above ARs to tinker around with, so I can't say I'd blame you for trying something a little more interesting than standard carbine buffer/spring."No. Listen to me because I know what I'm talking about here." -- Hannibal
9/06/2013 5:37pm, #20
My. 02....if you have a 16" barrel/carbine length gas system start out with an M16 carrier and an H buffer.