Hi Fellas, I bought a USGI spring and a Sadlack op rod guide for a M305 that I'm tinkering with, I installed it and when I rack the bolt back it jams in the open position. I measured the Op rod spring against the stock Nork spring and its about 3 inches longer. when I use the old spring and original op rod guide the action works fine. Anyhooo i figure the USGI spring is too long and is crammed together and jams the gun. I'm considering taking the dremmel to the spring and shortening it to the same length as the old nork one. what do you guys think? good idea or bad?
USGI Spring Too Long?
- Thread starter brts28
- Start date
TacticalTeacher
CGN Ultra frequent flyer
- Location
- Georgian Bay, ON
I have a cool Sadlak guide and like the USA op rod spring guides, all of them won't fit the Norc spring. So if you go the way of a USA made guide then You need a USA spring. Easy enough to remember?
To the original post guy, you got two options; take a large pair of snips and cut that Wolfe spring by an inch and retry things and retest the rifles operation.
Or you could buy another USA spring for $11 mailed since the springs I sell at my clinics have never had a single issue. Not that I care about another sale, but it's in the interest of offering another solution to the OP.
If you cut that Wolfe spring , I don't think yer #### will fall off. Just keep them snips on the workbench. Ha ha ha ha
Cheers, Barney
To the original post guy, you got two options; take a large pair of snips and cut that Wolfe spring by an inch and retry things and retest the rifles operation.
Or you could buy another USA spring for $11 mailed since the springs I sell at my clinics have never had a single issue. Not that I care about another sale, but it's in the interest of offering another solution to the OP.
If you cut that Wolfe spring , I don't think yer #### will fall off. Just keep them snips on the workbench. Ha ha ha ha
Cheers, Barney
This exact same issue came up on M14forum.com
There are some springs out there ( or some Sadlak guides ) that are an issue.
Barney - sorry to tell you mate but the one I got from you didn't work with my new Sadlak :-( Worked fine with the guide from M14.ca though so all's good. Sadlak worked with another USGI spring from Brownells.
BTW, the M14.ca guides work with both US and metric (Chinese) springs and are a good buy.
There are some springs out there ( or some Sadlak guides ) that are an issue.
Barney - sorry to tell you mate but the one I got from you didn't work with my new Sadlak :-( Worked fine with the guide from M14.ca though so all's good. Sadlak worked with another USGI spring from Brownells.
BTW, the M14.ca guides work with both US and metric (Chinese) springs and are a good buy.
Well, I tried the original Nork spring with the Sadlak OP rod guide and it won't fit. Tried the sadlack op rod and spring out of my other Nork and it jams the same as the first one I tried. SOOOOOO I cut the spring down an inch and tried it........ nope no go. same problem. Nork op rod guide works fine with nork spring..... something else is f#@$^%. Any ather ideas boys? maybe try a M14.ca OP rod guide? anybody wanna trade a new Sadlack op rod for an M14.ca one?
Well after much screwing around and trying a bunch of different things I ended up having to take the dremel to the Sadlack OP ROD and reduce the diameter of it by a few thousands. after that she works fine. just was a little too FAT. Thanks to everybody for chiming in and helping out!!
The Norinco op rod springs are slightly smaller in inside diameter than US GI and most of the US made commercial op rod springs, an op rod spring guide for use on a Canadian [ metric ] M14 clones, may bind on the larger diameter O.D. of the US made ORS guide.
So if you get a US spec. guide, figure on a US spec. replacement spring as well.
The Canadian made guide rods [like our M14.ca Black Arrow] are consistently a bit smaller in O.D (.325"), and will work with both the GI spec. springs and the original smaller I.D. metric Norinco op rod springs which consistently measure .338" from our various samples (and are 14.75" long).
However, the smaller Canadian/metric guide rods will show a tiny bit of play [ ripples ] if used with the larger springs.
A tight fit is good, but not too tight.
So if you get a US spec. guide, figure on a US spec. replacement spring as well.
The Canadian made guide rods [like our M14.ca Black Arrow] are consistently a bit smaller in O.D (.325"), and will work with both the GI spec. springs and the original smaller I.D. metric Norinco op rod springs which consistently measure .338" from our various samples (and are 14.75" long).
However, the smaller Canadian/metric guide rods will show a tiny bit of play [ ripples ] if used with the larger springs.
A tight fit is good, but not too tight.
I was using a USGI spring
