User Panel
User Panel
User Panel
|
Posted: 10/6/2007 2:32:09 PM EDT
i just finished another build and im preety happy with it, it is the lightest one ive built so far, I have one problem when i pull the bolt back and it latches if you bump the buttstock on the ground or bump it on your palm the bolt slams forward. any help?
 Bushmaster 14.7 m4upper RRA lower Magpul P-Mag Hogue grip BUIS Fiberlite 4 pos stock |
|
|
|
Posted: 10/6/2007 3:30:24 PM EDT
[#1]
The bolt going home if the stock is bumped is a normal thing if there is no empty mag in the rifle. The bolt catch is only being held in place by the carrier being pushed against it by the buffer/spring. When you bump it the carrier goes to the rear and the return spring on the bolt catch drops it out of the way and allows the bolt/carrier to go forward again.
Congratulations, the bolt catch works as it should. I completed a build where it stuck, and I had to replace the bolt catch and pin. |
|
|
|
Posted: 10/6/2007 3:48:22 PM EDT
[#2]
this is doing it with a loaded mag in the rifle
|
|
|
|
Posted: 10/6/2007 3:59:04 PM EDT
[#3]
Then you may have the same problem I had and the bolt stop is not moving up. can you push it in at the bottom? Is it real stiff? Will it drop back down on it's own?
If it is real stiff and the magazine floor plate cannot move it into position, then it needs to either be lubed real well, or the bolt catch needs to be relplaced because the pin hole is out of spec. What brand Lower Parts Kit did you use? The one I used when I had the problem was a Model 1. |
|
|
|
Posted: 10/6/2007 4:04:33 PM EDT
[#4]
Wait I reread your reply. You said it was doing this with a LOADED mag. Once again the floor plate of the Mag is no longer in contact with the bolt catch so just the Buffer/Spring tension is holding the bolt back.
If it goes forward with an unloaded mag in place then there are problems. If it locks back after the last shot and goes forward after tension is removed then it is working well. It's just like pulling the charging handle back and releasing it. |
|
|
|
Posted: 10/6/2007 4:08:30 PM EDT
[#5]
i will go check and see if it does it with a unloaded mag,
|
|
|
|
Posted: 10/6/2007 4:14:56 PM EDT
[#6]
negative it doesnt do it with a emty mag i hit the sum bitch hard on the ground and it stays in place, so you say the floorplate isnt touching the bottom of the catch could it be a faulty p-mag. i am half tempted to say f*** it and leave it like it is but its kind of not safe
edit--- i dont think my lower is out of spec its never givin me any problems tell i used this mag |
|
|
|
Posted: 10/7/2007 7:01:45 AM EDT
[#7]
nice biuld, tell us how it shoots
|
|
|
|
Posted: 10/7/2007 8:25:25 AM EDT
[#8]
Nice rifle... Did you drive to the moon? That is wierd dirt.
|
|
|
|
Posted: 10/7/2007 9:09:18 AM EDT
[#9]
no, I shoot next to a canal, and they had just moved some livestock down the road so its pretty beat up Edit-- i looked at the pic closer and you can see a hoof print in the upper part of the picture |
|
|
|
|
Posted: 10/8/2007 9:50:11 PM EDT
[#10]
Your good to go, the only time the follower (not floor plate) can hold the mag catch in position preventing the bump/jolt from releasing the bolt carrier is when the mag is empty. A loaded mag or no mag will allow the the bolt to release when bumped. |
|
|
|
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.
