texashuntingforum.com logo
Main Menu
Advertisement
Affiliates
Advertisement
Newest Members
Sakohunter264, Pups4Sale, Sevensalmon, FacePaint, GavinBryant
70595 Registered Users
Top Posters(All Time)
dogcatcher 110,646
bill oxner 91,416
SnakeWrangler 64,159
stxranchman 60,296
Gravytrain 46,950
RKHarm24 44,585
rifleman 44,461
BMD 41,241
Forum Statistics
Forums46
Topics616,483
Posts11,416,281
Members85,595
Most Online19,184
Feb 5th, 2020
Print Thread
Budget Ar 7.62x39 #7464227 03/21/19 03:34 PM
Joined: Jun 2007
Posts: 232
C
ChrisG Offline OP
Woodsman
OP Offline
Woodsman
C
Joined: Jun 2007
Posts: 232
I won a couple of FMK polymer lowers on gunbroker for 99 cents each after shipping and transfers I am into them $40.99 each, about retail. I have never messed with the ar platform but have an sks with plenty of ammo, 7.62x39 it is. Started pricing barrels, stripped uppers, bolt carrier groups, etc and I thought to myself this might get expensive. I won a lower parts kit with a handle on gunbroker 40 bucks shipped and now I am fully committed. While scouring gunbroker I found bear creek arsenal, I went to their site and they were having a sale. I got the BCA Dual Charging AR-15 Complete Upper Assembly 7.62x39, 16" 4150 Parkerized Heavy Barrel, 1:10 Twist w/ 15" Lightweight Keymod for $270 shipped. I bought a stock and buffer tube as well as a couple 30 round mags from classic firearms for 75 bucks shipped. I got kit off ebay with a lower vise block and the ar wrench for 30 bucks shipped.

[Linked Image]
[Linked Image]

So tell me THF is a 460 dollar ar a true budget build or could I have gone cheaper? How long will the polymer lower last? FMK says they have a lifetime warranty on their lowers hopefully I wont have to find out.

Re: Budget Ar 7.62x39 [Re: ChrisG] #7464315 03/21/19 04:29 PM
Joined: Dec 2011
Posts: 3,180
G
garyrapp55 Offline
Veteran Tracker
Offline
Veteran Tracker
G
Joined: Dec 2011
Posts: 3,180
ChrisG, I broke a poly lower a month or so back that I've been running for 15 years. I feel pretty confident it broke because of my hot loads, suppressor, and overgassing. Yours should last a while.

Re: Budget Ar 7.62x39 [Re: ChrisG] #7464333 03/21/19 04:43 PM
Joined: Jan 2012
Posts: 1,236
W
wall8053 Online Happy
Pro Tracker
Online Happy
Pro Tracker
W
Joined: Jan 2012
Posts: 1,236
In case you get light primer strikes and fail to fire, swap your hammer spring to an extra power hammer spring. I don't know if BCA installed an enhanced firing pin with your upper but that also helps with light strikes.

Re: Budget Ar 7.62x39 [Re: wall8053] #7464396 03/21/19 05:42 PM
Joined: Jun 2007
Posts: 232
C
ChrisG Offline OP
Woodsman
OP Offline
Woodsman
C
Joined: Jun 2007
Posts: 232
Originally Posted by garyrapp55
ChrisG, I broke a poly lower a month or so back that I've been running for 15 years. I feel pretty confident it broke because of my hot loads, suppressor, and overgassing. Yours should last a while.


That's good to hear. I will be shooting factory ammo. Like most things there are so many different opinions on the internet. Did it break where the buffer tube screws into the lower?

Originally Posted by wall8053
In case you get light primer strikes and fail to fire, swap your hammer spring to an extra power hammer spring. I don't know if BCA installed an enhanced firing pin with your upper but that also helps with light strikes.


I had read about the light strikes. Depending on what happens I will either get the upgraded spring kit or just get a drop in trigger group. There is one on ebay for like 75 bucks.

Ebay Trigger

Re: Budget Ar 7.62x39 [Re: ChrisG] #7464427 03/21/19 06:17 PM
Joined: Dec 2011
Posts: 3,180
G
garyrapp55 Offline
Veteran Tracker
Offline
Veteran Tracker
G
Joined: Dec 2011
Posts: 3,180
Originally Posted by ChrisG
Did it break where the buffer tube screws into the lower?

No, it broke the rear take down pin and on the inside of the lower, took a chip out where the pin goes.
https://texashuntingforum.com/forum/ubbthreads.php/topics/7430243/re-over-pressure#Post7430243

Re: Budget Ar 7.62x39 [Re: ChrisG] #7464741 03/22/19 12:19 AM
Joined: Feb 2010
Posts: 7,077
J
jhenderson Online Content
THF Trophy Hunter
Online Content
THF Trophy Hunter
J
Joined: Feb 2010
Posts: 7,077
To your question of could you have gone cheaper yes you could have but you didnít do bad either. Iíve built one for 320 but that took months of searching for deals and itís shoots every bit as good as some other much more expensive ones. And I didnít use all new parts either though.

Previous Thread
Index
Next Thread

© 2004-2022 OUTDOOR SITES NETWORK all rights reserved USA and Worldwide
Powered by UBB.threads™ PHP Forum Software 7.7.3