User Panel
Quoted:
Answer this question and the Bumpsaw community would be indebted to you! We have all pondered adding a home brewed bumpfire stock to an RPD... the trigger is what we all have an issue with.... @SkilletsUSMC says he wants to buy a kit and give her a swing though! - Clint View Quote If I could figure out how DSA gets a buffer extension in there and allows the spring to cooperate I don't see it being an impossible task. It maybe ugly as all get out. But it should work. That being said I have never felt a semi auto trigger of a RPD, so there maybe too much travel or something that would make it a pain in the ass. |
|
|
|
I guarantee I could get an RPD to bump EASY. I would build the stock out of wood and use the grip from a Bumpski.
Someone want to send me theirs? |
|
|
|
|
Quoted:
are those rounds indexed on the belt correctly? Looks like the head isn't snapped in. Also, Mcdonald's. bleh View Quote I believe so. It was just thrown in for a photo op so it could have been not set up right. Its also not complete The mcdonalds... I don't eat there to be clear. But my lady friend fancies cokes from there. She cant have a normal coke, has to be a fucking mcdonalds coke |
|
Quoted:
I believe so. It was just thrown in for a photo op so it could have been not set up right. Its also not complete The mcdonalds... I don't eat there to be clear. But my lady friend fancies cokes from there. She cant have a normal coke, has to be a fucking mcdonalds coke <img src="http://www.ar15.com/images/smilies/smiley_noSmile.gif" /> View Quote View All Quotes View All Quotes Quoted:
<strong>Quoted:</strong>
are those rounds indexed on the belt correctly? Looks like the head isn't snapped in. Also, Mcdonald's. bleh I believe so. It was just thrown in for a photo op so it could have been not set up right. Its also not complete The mcdonalds... I don't eat there to be clear. But my lady friend fancies cokes from there. She cant have a normal coke, has to be a fucking mcdonalds coke <img src="http://www.ar15.com/images/smilies/smiley_noSmile.gif" /> I do like the RPD riding shotgun in the VW tho. |
|
Quoted:
I do like the RPD riding shotgun in the VW tho. View Quote RPD riding in a Subaru you mean If I get some time this weekend I may start working on figuring out how to get the barrel sized down a little. Im thinking about chucking it in a drill press and using emory cloth to get the OD slightly smaller. |
|
Quoted:
RPD riding in a Subaru you mean <img src="http://www.ar15.com/images/smilies/smiley_smartass.gif" /> If I get some time this weekend I may start working on figuring out how to get the barrel sized down a little. Im thinking about chucking it in a drill press and using emory cloth to get the OD slightly smaller. View Quote View All Quotes View All Quotes Quoted:
<strong>Quoted:</strong>
I do like the RPD riding shotgun in the VW tho. RPD riding in a Subaru you mean <img src="http://www.ar15.com/images/smilies/smiley_smartass.gif" /> If I get some time this weekend I may start working on figuring out how to get the barrel sized down a little. Im thinking about chucking it in a drill press and using emory cloth to get the OD slightly smaller. It's ok if you drive a VW Bug. We're not judging. |
|
|
|
Quoted:
Shut it We would judge the fuck out of that What's the purpose of a smaller OD on the barrel? View Quote As of right now the OD on the barrel is very slightly larger than the ID of the receiver. Assuming I measured correctly anyways. I had a few beers before I did the measuring with a caliper and that was awhile ago. The proper solution is to take a few thousands off with a lathe, but guess what I don't have . The solution in my mind is to chuck the barrel into a drill press and use some fine abrasive material to remove a few thousands, but Im still thinking on what Im going to do exactly to correct the sizing issue |
|
Dumb question but if it's super close couldn't you just stick it in a bucked of dry ice let it cool and shrink ever so slightly then ram her home? Cold shouldn't affect any tempering like heating up the receiver to expand it would I'd imagine. But it could be a dumbass suggestion either way just speculating.
|
|
Quoted:
Dumb question but if it's super close couldn't you just stick it in a bucked of dry ice let it cool and shrink ever so slightly then ram her home? Cold shouldn't affect any tempering like heating up the receiver to expand it would I'd imagine. But it could be a dumbass suggestion either way just speculating. View Quote Ive considered that as well. Hopefully the machine work on the bolt carrier and lower wont take too long and Ill have the parts back to where I have to figure out a solution |
|
I chill my press fit AK barrels in the freezer before pressing if they're extra tight. It buys you a little allowance, but it can get interesting if they warm up before you wanted them to.
|
|
Anti seize, proper dimension and a press will make it simple.
Did you get Headspace Gauges yet? |
|
|
You're really making me want to get mine rescued from the back burner. I've got a really nice Polish kit from back when they came with unmolested barrels.
|
|
|
Hopefully those parts will get done being machined this week because Im ready to do something with this build
|
|
I missed project guns call today. But VM says its done.
I maybe able to do a little work next week. Next weekend Ill be in vegas however. This build will be done soon |
|
Parts should be here by Wednesday or so I was told.
I remeasured the barrel stub that goes in the receiver and also the DSA receiver. They seem to measure out to about the same measurement. Should make for a tight fit but from what I am reading on my research I shouldn't take down the barrel any. Well see how it goes this week |
|
|
|
Quoted:
In for the quality build and entertainment Chase! View Quote Assuming that goes well all I have to do then is press barrel accessories on, drill gas port and it should be ready to roll. It sounds easy |
|
Quoted:
As soon as I get the carrier back I can start pressing the barrel to headspace. Then drill and pin barrel. Assuming that goes well all I have to do then is press barrel accessories on, drill gas port and it should be ready to roll. It sounds easy View Quote |
|
|
Getting the gauges from my buddy tomorrow, parts should also be in tomorrow. Im going to try and go ahead and install the barrel and headspace.
I did just realize I forgot to get a barrel pin. I found a 8mm pin used for the master links on tracks at my work. Im considering just chopping that down and drilling the receiver 5/16. That should leave .0025" for the interference fit between 5/16 and 8mm. Once that's done I just have to drill and pin the rest of the accessories and she should be done. I saved those pins and hopefully I can find a drill bit that will work to leave them tight enough Im going to try and have this thing together by the weekend |
|
Quoted:
Getting the gauges from my buddy tomorrow, parts should also be in tomorrow. Im going to try and go ahead and install the barrel and headspace. I did just realize I forgot to get a barrel pin. I found a 8mm pin used for the master links on tracks at my work. Im considering just chopping that down and drilling the receiver 5/16. That should leave .0025" for the interference fit between 5/16 and 8mm. Once that's done I just have to drill and pin the rest of the accessories and she should be done. I saved those pins and hopefully I can find a drill bit that will work to leave them tight enough Im going to try and have this thing together by the weekend View Quote |
|
|
|
|
Quoted:
Don't be a pussy View Quote That's probably the smarter move assuming I can find them. I then can just make a barrel pin from one of them. Again assuming I can find some locally. If not Ill do this right and order a AK barrel pin |
|
|
I better just wait and order the right drill bits and a barrel pin instead of half assing it |
|
|
If it's anything like pinning an AK barrel, you'll want a ream to get the hole the right size and smooth. That really helps with these press fit components.
|
|
Alright I saw a lot of conflicting info on the barrel pin size
2 rivers said to use a 4mm pin Ive also seen it suggested to use a oversized ak pin. Well the 4mm seemed too small and the ak pin too big when I put a caliper next to the chamfer that's started in my DSA receiver. So I finally just asked DSA and they recommend to use a 3/16th dowell pin in their receivers. Well I took a short lunch and chanced it at a local hardware store. I scored 3/16th dowell pins and a number 14 and 13 sized drill which should give it a few thousands undersized for the dowell pin to be pressed in. Im feeling pretty good about getting this guy together tonight |
|
|
|
Well.
I got everything working good. Got the carrier to stop binding. Everything was going pretty smoothly. I got the barrel in about 3/4 of the way. Then I saw a dreaded torque of the receiver while under load from the press. So the good news I guess is that I bent back the receiver most the way. The bad news is Im likely going to need a new receiver. Its got a slight S curve to the back half of the receiver. This is my own doing and simply not being smart with how I set up the receiver and the press. Im going to try a bit more to salvage this receiver first as all I need to do is get the rails straight and it should work. It didn't damage the front half of the receiver where all the critical dimensions are for the locking flaps. Well see. Pretty disappointed in myself |
|
You take on ambitious projects and bring them to fruition, and we all get to benefit from watching. Sometimes you choose well, sometimes badly. This is an expensive lesson, but those go with any ambitious project. Kudos to you for carrying on undeterred; some would have bandsawed the brand-new receiver into 3 parts and posted pics.
|
|
Quoted:
You take on ambitious projects and bring them to fruition, and we all get to benefit from watching. Sometimes you choose well, sometimes badly. This is an expensive lesson, but those go with any ambitious project. Kudos to you for carrying on undeterred; some would have bandsawed the brand-new receiver into 3 parts and posted pics. View Quote |
|
|
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.