User Panel
User Panel
User Panel
|
Posted: 3/28/2017 8:27:16 PM EDT
I have five carbines I'm trying to set up exactly the same. Three of them are RRA 16" carbines and are basically how I want them and the other two are DPMS 16". I'm looking into this most cost effective way to get them all consistent.
My problem is the DPMS guns have railed gas blocks (which incorrectly had MBUS mounted to them before, that's a long story). Instead of a flip up front sight I was looking into dumping those and getting F marked A2 sight bases. The flashlight mounts I'd like to use clamp to the A2 bases. What I have: 
In googling the question it seems like most people are doing the opposite of what I am, so I'm having difficulty trying to figure out exactly what is involved. The F marked A2 bases aren't exactly as common as what I would have thought. Im not familiar with what is needed to drill in the pin holes, either. |
|
|
|
Posted: 3/28/2017 8:34:28 PM EDT
[#1]
You're better off sending those barrels to a pro and getting the FSB drilled and pinned. ADCO is the "go-to" place for this work.
|
|
|
|
Posted: 3/28/2017 8:40:12 PM EDT
[#2]
Quote HistoryQuoted:
You're better off sending those barrels to a pro and getting the FSB drilled and pinned. ADCO is the "go-to" place for this work. Looks like it's something that can easily trash the barrel if it's not done exactly right. Maybe I can talk them I to replacing the barrels as an easier option. |
|
|
|
Posted: 3/28/2017 9:10:26 PM EDT
[#3]
What about clamp on A2s are they F marked?
|
|
|
|
Posted: 3/29/2017 3:11:55 AM EDT
[#4]
Quote HistoryQuoted:
What about clamp on A2s are they F marked? http://i183.photobucket.com/albums/x282/balloo932/SAM_0387-1.jpg |
|
|
|
Posted: 3/29/2017 3:35:37 AM EDT
[#5]
I've drilled one barrel for taper pins and I can say without the correct tooling it would be really easy to screw up.
Your best bet is either ship all of your barrels to ADCO for the F marked FSB pinning, or buy 5 clamp on F marked FSBs |
|
|
|
Posted: 3/29/2017 11:46:10 AM EDT
[#6]
I've drilled and reamed two of these on a drill press I set up in my apartment (I'm sure my downstairs neighbors must hate me
 )
Do you have any machining experience or a drill press? As Milspec556 said, it can be easy to screw this up... the second one I did ended up a little canted by a couple degrees at first, but I was still able to salvage it and now it's perfectly straight and both pins are secured. So unless you really mess it up, you should be just fine. |
|
|
|
Posted: 3/29/2017 8:42:28 PM EDT
[#7]
I have drilled & tap the A2/A4 front sight with no worry. Will post pictures later.
|
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
