Tweet
I recently built a new lower for my HK 416 upper. This is not my first build, second or third. I noticed when I attach an empty magazine and pull the charging handle, the bolt locks to the rear. If I shake the rifle, the bolt will unlock and spring forward(without pressing on the bolt release!). Any thoughts? All suggestions are welcome.
-
"Americans used to roar like lions for liberty;now we bleat like sheep for security."
~ Norman Vincent Peale -
What kinds of mags and how many different kinds have you tried?California Uber Alles, California Uber Alles
Uber Alles California, Uber Alles California
I am Governor Jerry Brown, My aura smiles and never frowns, Soon I will be President... -
pmags, I'll try usgi and hk mags tomorrow. Same build worked great with noveske lower. This lower is a POF gen 1"Americans used to roar like lions for liberty;now we bleat like sheep for security."
~ Norman Vincent PealeComment
-
I have this problem with 2 of my many mags... never happen with the higher end ones so I just use them now...Comment
-
ok guys, I've tried Pmags, USGI mags, hk mags, c products....no change at all. Bolt will unlock with mod shake. Any other thoughts???"Americans used to roar like lions for liberty;now we bleat like sheep for security."
~ Norman Vincent PealeComment
-
the followers of the empty mag push against the bolt catch, which stops the bolt carrier from slamming home, so is your bolt catch high enough? i can't think of anything else(\__/)
(='.'=)
(")_(") Copy and paste this bunny into your signature to help him gain world domination.!!!Comment
-
i had a similar problem on my 9mm build. is there a little bit of play when you pull the bolt back all the way and let it go to get caught by the bolt catch? i know its a different system but you might have the same problem i had.
on my 9mm build, the bolt would lock back but with any kind of shake or hit no matter how light, the bolt would get sent forward. to figure out why, i pulled the ch back all the way and let it go slowly to get caught on the bolt catch to see how much space there was. it was about 1/8" i think. i realized that you need way more space than that for the bolt catch to have time/space to do its thing. so i shaved off another 1/8" or so on the buffer's plastic spacer. now i have a little over 1/4" of space between the bolt when pulled back all the way and the bolt catch. it works perfectly now.
i hope i'm making sense!Last edited by pacrimguru; 03-27-2010, 10:57 PM.Comment
-
Randall Rausch
AR work: www.ar15barrels.com
Bolt actions: www.700barrels.com
Foreign Semi Autos: www.akbarrels.com
Barrel, sight and trigger work on most pistols and shotguns.
Most work performed while-you-wait.Comment
There are currently 2971 users online. 133 members and 2838 guests.
Most users ever online was 65,177 at 7:20 PM on 09-21-2024.
Comment