Author Topic: AR 15 build questions (Read 5874 times)

jrebel · « **on:** January 09, 2013, 04:15:16 PM »

OK....I am building a few AR's and have many questions. Figured I would just start a thread and ask some of the experts. I will be the first to admit I know very little about AR's and until recently have never owned one.

PLEASE LEAVE OUT ALL COMMENTS ABOUT NOT BEING ABLE TO FIND STUFF THINGS BEING OVER PRICED, ETC. ETC. ETC. I DON'T CARE ABOUT THAT AND I HAVE THE ABILITY TO FIND PARTS, AND WILL PAY WHAT I NEED TO PAY.

Thanks

First questions

1. As I look online at parts the list of distrubuters is endless. How do you know or how can you find out if these distributers and their parts are reputable?

2. What is the difference in a trigger (two stage vs. single stage)? Is it necessary to have one over the other for a standard M4 build?

I have many more, but do not want to overwhelm everyone so I will wait and see what kind of response I get on these two.

Feel free if anyone else has questions to please ask here....I am sure I can learn from others questions.

Thanks

Johnny

CementFinisher · « **Reply #1 on:** January 09, 2013, 04:25:53 PM »

1. For questions about reputable brands or suppliers look to ar15.com.
2. A good single stage has zero creep, crisp letoff, and minimal overtravel. A twostage is going to have intital takeup phase with very light weight then it gets to the second stage and heavier weight and breaks like glass when you pass it. 2 stage is considered more reliable and safer. single stage considered more acurate to shoot.

jrebel · « **Reply #2 on:** January 10, 2013, 02:31:46 PM »

Thanks for that information. I am searching that the ar15.com site now and boy oh boy is it extensive.

Has anyone ever used:

model1sales.com ??

thinkingman · « **Reply #3 on:** January 10, 2013, 03:40:36 PM »

Quote from: CementFinisher on January 09, 2013, 04:25:53 PM

1. For questions about reputable brands or suppliers look to ar15.com.
2. A good single stage has zero creep, crisp letoff, and minimal overtravel. A twostage is going to have intital takeup phase with very light weight then it gets to the second stage and heavier weight and breaks like glass when you pass it. 2 stage is considered more reliable and safer. single stage considered more acurate to shoot.

Agree on item 1
Disagree on item 2...I think a two-stage is at least as accurate as the best single.
Model1 has a decent reputation.
Palmetto State Armory and Del-Ton are OK, too.
The suggestion of using AR15.com as a resource is a good one.
Lots of build videos on Youtube, too.

thinkingman · « **Reply #4 on:** January 10, 2013, 03:41:47 PM »

Coincidentally, I just got a Rock River LPK including the two-stage for $149.
That's a good deal BEFORE the craziness.
(patting myself on the back)

motg9_6 · « **Reply #5 on:** January 10, 2013, 04:55:07 PM »

i recently ordered a gun from model 1 sales. cancelled the order a few weeks later because of no response (im sure its due to over demand currently happening). was able to get everything of way better known quality else where for my build. read several reviews about their customer service being garbage and product being ok, but not great either. hope this helps

motg9_6 · « **Reply #6 on:** January 10, 2013, 04:57:44 PM »

midwayusa.com has an abundance of information for building it would help to familiar yourself with that site can be tricky at first but great once you know it.

jrebel · « **Reply #7 on:** February 02, 2013, 08:02:17 PM »

So I am looking at an AR15 complete upper new. It states it comes with an M16 BCG. Does this sound right? What is the difference between an ar15 and m16 bcg and are they interchangable?

will a mil spec lower take both gas and piston driven uppers? I am interested in the gas, but this is just a curiosity question as I learn?

sorry if this is a silly question.

Johnny

CementFinisher · « **Reply #8 on:** February 02, 2013, 09:19:25 PM »

Dirrect impingment and piston have no bering on lower selection. mainly colt and a select few other manufacturers fun small pin or large pin. that is the only thing that will affect upper to lower mating. yes an m16 bcg will work in your ar. It has a full circle or more mass opposite of the bolt. it is for full auto but is not a related to nfa parts. Only the lower and LPK are nfa related.

jrebel · « **Reply #9 on:** February 02, 2013, 09:24:48 PM »

Thanks, that helps tremendously.

JimmyHoffa · « **Reply #10 on:** February 02, 2013, 09:25:31 PM »

Might correct me, but I don't think AR lowers are mil spec. They would need to be milled and drilled to function with the m-16/m-4 sear. Basically a mil-spec AR lower is an m-16/m4 lower. Some AR lowers can accept other milspec parts though (like buffer tubes). Anyone know if this is right?

CementFinisher · « **Reply #11 on:** February 02, 2013, 09:49:13 PM »

Quote from: JimmyHoffa on February 02, 2013, 09:25:31 PM

Might correct me, but I don't think AR lowers are mil spec. They would need to be milled and drilled to function with the m-16/m-4 sear. Basically a mil-spec AR lower is an m-16/m4 lower. Some AR lowers can accept other milspec parts though (like buffer tubes). Anyone know if this is right?

the buffer tubes are different but will both work on any mil spec lower. the threaded portions are the same. the obly difference between ar15 and m16 m4 lowers are the select fire portion and the milling of fire controll portions

jrebel · « **Reply #12 on:** February 02, 2013, 10:00:36 PM »

Another silly Question....Is a 16" barrel legal in washington?

Wilson Barrels...what is your opinion?

Thanks

JimmyHoffa · « **Reply #13 on:** February 02, 2013, 10:02:14 PM »

yes, 16 inch is legal. I think Wilson is fine. They make some good match barrels.

CementFinisher · « **Reply #14 on:** February 02, 2013, 10:08:37 PM »

you can go down to a 14 in barrel with most flass hiders or comps pin and welded. making the the barrel overall 16 inches

jrebel · « **Reply #15 on:** February 02, 2013, 10:16:11 PM »

If you had to pick......and you only had these choices...which one do you pick 1:7 or 1:9 twist.

CementFinisher · « **Reply #16 on:** February 02, 2013, 10:19:16 PM »

whats it for? bulk ammo? hunting ammo? What barrel length?

jrebel · « **Reply #17 on:** February 02, 2013, 10:24:13 PM »

16" barrel, mostly plinking shtf scenario......I already have a coyote gun, but may want to use it as that on occasion. I can't see myself shooting less than a 55 grain bullet. I will not be shooting my 70 to 75 grain bullets that I use out of my varmit ar 1:8 twist.

Biggerhammer · « **Reply #18 on:** February 03, 2013, 11:30:09 AM »

Quote from: jrebel on February 02, 2013, 10:16:11 PM

If you had to pick......and you only had these choices...which one do you pick 1:7 or 1:9 twist.

Hands down 1-7.

carpsniperg2 · « **Reply #19 on:** February 03, 2013, 01:51:44 PM »

1:7 would be my pick as well of the 2. I really like a 1:8 it seems like I have had really good luck with that twist rate.

CementFinisher · « **Reply #20 on:** February 03, 2013, 02:02:12 PM »

jrebel · « **Reply #21 on:** February 03, 2013, 08:17:32 PM »

OK....Upper is done just waiting for its arrival, hopefully in the next 7-10 days. Now I need help with sight options. I ended up with a 16 inch barrel and rifle length quad rail. I kinda like the looks of a detatchable carry handle with dual apature, but am not set on it. I need both a front and rear. I don't plan on scoping this firearm.

What are some good manufacturers?
What is functional and durrable?
What do you reccomend.

Fl0und3rz · « **Reply #22 on:** February 03, 2013, 08:23:20 PM »

http://www.bravocompanyusa.com/LMT-Tactical-Rear-Sight-p/lmt%20rear%20sight%20l8a.htm

and matching front.

jrebel · « **Reply #23 on:** February 22, 2013, 07:58:58 PM »

Accessory questions now....

1. What is a good grip. I really like the ERGO grip's feel and profile. Give me your opinion with pros and cons. This is going on a M4 model rifle. What other grips are out there that you all like.

2. What bi pod is good. I would like to ability to shoot prone as well as sitting if possible. I have used Harris in the past and like them, is there a better bi pod for the AR platform. It will be mounted on the picatinny rail system.

3. Butt stock....What is a good one. I am currently looking at the Magpul ACS and CTR...pros and cons based on experience. Any other I should check out before I buy?

4. Any other accessories (not sighting related) that is a must have.

The thing shoots lights out and and I have learned a ton from building it. Now I am hooked!!

CementFinisher · « **Reply #24 on:** February 22, 2013, 10:08:41 PM »

1. If you have larger hands id get the LaRue Tactical A-PEG Grip
2. un needed weight
3. For the money you cant go wrong with the CTR

carpsniperg2 · « **Reply #25 on:** February 22, 2013, 10:17:25 PM »

1: ergo all the way use them every time on all the rifles I have done.

2: Harris all the way for a bi pod.

3: I do not care for the acs and ctr. They are a little to sloppy for me as I cant stand play in my stocks and slop between the upper and lower. If you can buy one the UBR is a amazing stock if you want adjustable.

4: if you are getting a quad rail upper you will want some type of rail covers as they can be hard on the hands.

jrebel · « **Reply #26 on:** February 22, 2013, 10:25:09 PM »

Yeah, I will definitely need some rail covers. I plan on going with dark earth or desert sand to break up the color. I attached a pic so people could see the finished product. Both built the same except for the rear sights...a project me and my brother in law got to enjoy together.

carpsniperg2 · « **Reply #27 on:** February 22, 2013, 10:27:47 PM »

They are addicting for sure I can't say how many I have run threw now

jrebel · « **Reply #28 on:** February 22, 2013, 10:31:10 PM »

Sorry, for some reason I forgot the pic. on the last post, after I said I did...

carpsniperg2 · « **Reply #29 on:** February 22, 2013, 10:33:35 PM »

Yeah new grip and new stock and you will be in business!!!

bow-n-head · « **Reply #30 on:** February 23, 2013, 07:40:08 AM »

My first AR showed up yesterday, complete. I am already looking at changing the stock. Don't know anything about buffer tubes, commercial, mil spec. which will work?

jrebel ur guns are

jrebel · « **Reply #31 on:** February 23, 2013, 07:50:08 AM »

Quote from: bow-n-head on February 23, 2013, 07:40:08 AM

My first AR showed up yesterday, complete. I am already looking at changing the stock. Don't know anything about buffer tubes, commercial, mil spec. which will work?

jrebel ur guns are

Both buffer tubes will work. The commercial is slightly bigger diameter tube, but the threads are the exact same. The commerical tube is not cut at at a 90 degree and the mil spec is. Google it so you can see the picture. The only thing that matters is knowing which one you have so if you buy another butt stock you buy the correct one.

bow-n-head · « **Reply #32 on:** March 01, 2013, 07:20:03 PM »

Got a scope and bipod on it. Plan to hunt big game with this, it is a .308

MadHatter · « **Reply #33 on:** March 01, 2013, 07:24:36 PM »

Quote from: bow-n-head on March 01, 2013, 07:20:03 PM

Got a scope and bipod on it. Plan to hunt big game with this, it is a .308

Need a PRS on that bad boy there... :-)

Just getting done building a LR308, let me know if you have any questions.

Sent from my HTC PH39100 using Tapatalk 2

bow-n-head · « **Reply #34 on:** March 01, 2013, 07:30:51 PM »

WOW I see I am just getting started. Sweet gun

carpsniperg2 · « **Reply #35 on:** March 01, 2013, 07:33:18 PM »

A fixed stock is the best way to go on the ar-10 platforms. I also suggest the PRS. If you want to go a little less $ get a full size ACE stock. Both will need a full length rifle buffer tubes.

MadHatter · « **Reply #36 on:** March 01, 2013, 07:39:17 PM »

Quote from: bow-n-head on March 01, 2013, 07:30:51 PM

WOW I see I am just getting started. Sweet gun

Actually, optics aside the only thing I have really done are the Magpul PRS stock and the ergo palm rest grip. I see you have the exact same rifle, that PRS balances out the barrel really well, and it's about a 5min install.

The optics were the biggest chunk of change I have put into it.

Timney trigger is in the mail, threading, muzzle break and barrel cerakote in probably 2 weeks or so and a year or so from now I can get a suppressor for it approved.

jrebel · « **Reply #37 on:** May 07, 2013, 01:25:35 PM »

Final Product....well, untill I decide to put optics on it. Enjoy the gun porn.

rock · « **Reply #38 on:** May 12, 2013, 06:04:20 PM »

What's a good collapsible stock, that has a raised pad on it if i wanna use a high scope, but be able to rest my cheek on it when firing?
I hope i worded that right.

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Author Topic: AR 15 build questions (Read 5874 times)

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