First AR build tomorrow.

outrider58 · Apr 11, 2015

Sling Blade said:
The voice of experience?

No, just the voice of a dyslexic...

DaemonAssassin · Apr 11, 2015

OP. If you run into problems, don't hesitate to ask for help. Lots of us have done our builds from the ground up and are willing to help a n00b.

DaemonAssassin · Apr 11, 2015

BradMacc82 said:
For the upper, drive the FA roll pin in from the bottom, if your punch slips off the pin and mars the anodizing - it'll at least be in a less visible location.

I couldn't offer much more advice without knowing the components you're going to use.

The last 3 uppers I've built up for other people, there's been something unexpected that arises - so if something does pop up on your build, try not to stress. It happens. May have to think outside the box, but a solution will come to mind.

An AAC gas block comes to mind... But at least the fore end went on without a hitch. I might need to link up with you sometime soon to put together another upper.

PapaC · Apr 11, 2015

That is excellent advice.

MauiWowie · Apr 11, 2015

Everything you need is below Have fun!

BradMacc82 · Apr 11, 2015

DaemonAssassin said:
An AAC gas block comes to mind... But at least the fore end went on without a hitch. I might need to link up with you sometime soon to put together another upper.

Assisted one guy here not long ago with a .50Beo build, the gas-block was an even tighter fit than yours was - but it got worked on and installed, it fought some, but it submitted.

No problem, I got plenty of time these days - always game for another build.

Vile Shadow · Apr 11, 2015

BradMacc82 said:
Assisted one guy here not long ago with a .50Beo build, the gas-block was an even tighter fit than yours was - but it got worked on and installed, it fought some, but it submitted.

No problem, I got plenty of time these days - always game for another build.

Did you have to pound the hell out of it with a hammer and a 2x4? :innocent0

BradMacc82 · Apr 11, 2015

Sling Blade said:
Did you have to pound the hell out of it with a hammer and a 2x4?

Not quite, but even after some sanding with 1500 grit paper on the block seat, it took some light tapping to fully set it in place.

With DA's, we could get away with just heating it up some with the MAPP gas torch - that was after I had to install the barrel index pin in the barrel extension.

DaemonAssassin · Apr 11, 2015

BradMacc82 said:
Not quite, but even after some sanding with 1500 grit paper on the block seat, it took some light tapping to fully set it in place.

With DA's, we could get away with just heating it up some with the MAPP gas torch - that was after I had to install the barrel index pin in the barrel extension.

That was fun day. At least it is consistent with where it throws the spent brass.

BradMacc82 · Apr 11, 2015

DaemonAssassin said:
That was fun day. At least it is consistent with where it throws the spent brass.

Damn skippy, could nearly set a bucket on the ground and catch them all.

rabidravens · Apr 11, 2015

I am pretty happy with how it turned out. The only problem I encountered was with the crush washer for the muzzle brake. I had to sand it, to be able to index the brake properly.

DaemonAssassin · Apr 11, 2015

BradMacc82 said:
Damn skippy, could nearly set a bucket on the ground and catch them all.

I'm tempted to try that one day...

Russ D · Apr 11, 2015

rabidravens said:
I am pretty happy with how it turned out. The only problem I encountered was with the crush washer for the muzzle brake. I had to sand it, to be able to index the brake properly.

I've switched from using crush washers to shims for that reason.

AJRB · Apr 11, 2015

rabidravens said:
I am pretty happy with how it turned out. The only problem I encountered was with the crush washer for the muzzle brake. I had to sand it, to be able to index the brake properly.

Very nice looks great!! :thumbsup:

15 inch KMR rail?

Vile Shadow · Apr 11, 2015

Not bad at all. :thumbsup:

Let us know how she shoots.

rico903 · Apr 12, 2015

outrider58 said:
Make sure FA is facing the right way...

FA? Not sure what you mean. Not up on lingo. Don't know what DA and FA stand for. I equate FA with full auto.

rico903 · Apr 12, 2015

rabidravens said:
I am pretty happy with how it turned out. The only problem I encountered was with the crush washer for the muzzle brake. I had to sand it, to be able to index the brake properly.

Which way does the bevel face?

K.C.Dean · Apr 12, 2015

rabidravens said:
I am pretty happy with how it turned out. The only problem I encountered was with the crush washer for the muzzle brake. I had to sand it, to be able to index the brake properly.

I had the same problem but I didn't sand it. I got a bolt and put a nut on it then put the crush washer on then another nut and tighted it a little at a time, put it on barrel, check it. I did that until I got it to fit with the proper torque.You just have to be careful not to flatten it to much.

rabidravens · Apr 12, 2015

rico903 said:
Which way does the bevel face?

Bevel is facing the receiver.

outrider58 · Apr 12, 2015

rico903 said:
FA? Not sure what you mean. Not up on lingo. Don't know what DA and FA stand for. I equate FA with full auto.

Sorry. Forward assist. Gotta make sure the flat side faces the bolt inside the receiver before you drive the roll pin home. I almost made this mistake once but I caught myself.

First AR build tomorrow.

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