Slowing down AR15 bolt cycling

J

jetinteriorguy

New member
Not to be a smarta##, I’d just buy better mags. The only experience I’ve had with AR Stoner mags is the ones I have for my 7.62x39 AR and they’ve been flawless. You didn’t happen to get them by mistake? I could see that being a problem.
 
M

MarkCO

New member
Geezerbiker said:
What, no comments on the problem with the mags?

Tony
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AR Stoner is a Midway brand, has to be lowest bidder. I'd never buy anything AR Stoner that was critical to the operation of a firearm. BCGs, mags or barrels. Maybe a Handguard or buttstock to for a budget build.

I'd return them and get something reliable.
 
M

MarkCO

New member
PMags are decent for a while if you don't leave them loaded without the clip on. Lancers are excellent, so are the Brownell's Steel magazines.
 
J

jetinteriorguy

New member
C-Products are great mags. Have them in both AR15/.223 and AR15/7.62x39 and they’ve been great. My 7.62x39 upper is an AR Stoner and has been excellent, and I have both AR Stoner and C-Products mags for this rifle and they are literally identical other than the name. I have no proof but from what I can tell I’d bet the AR Stomer mags were made for them by C-Products.
 
M

MarkCO

New member
jetinteriorguy said:
I have both AR Stoner and C-Products mags for this rifle and they are literally identical other than the name. I have no proof but from what I can tell I’d bet the AR Stomer mags were made for them by C-Products.
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I saw several differences in the C-Products mags and the Stoner mags. Actually sent them back and Midway refunded my money no questions.
 
G

Geezerbiker

New member
The AR Stoner mags function fine but like I said before, 3 of the 4 don't hold the full 20 rounds. When I loaded them with 15 rounds (just to be consistent) all of them functioned properly. I knew they were cheap when I bought them and I'm going to tinker with them going forward. If I can't figure it out, I'll put a 5 round wood spacer in the bottom and label them for 15 rounds. I bought the first 3 back around November and y'all can guess why...

I'm also looking to buy a couple of Brownells brand stainless 20 round mags to see how I like them. I've always felt that 30 round mags stick to far down and are kinda in the way. It's a personal preference but it's mine...

This first AR sure has been a learning experience... I already like the rifle but I'll like it a lot more when I have it all sorted out.

Tony
 
J

jetinteriorguy

New member
MarkCO said:
I saw several differences in the C-Products mags and the Stoner mags. Actually sent them back and Midway refunded my money no questions.
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Not sure if I was very clear, I was only comparing the 7.62x39 mags, not .223. Other than the color of the follower and name stamped on the base I couldn’t tell the difference.
 
G

Geezerbiker

New member
The Stoner AR mags all feed fine. They just won't hold as many rounds as they're supposed to.

I've ordered 2 more mags from Brownells. It'll be interesting to see how they compare...

Tony
 
G

Geezerbiker

New member
I had all 4 of them apart now and I can't see much wrong. Twp of them seemed ever so slightly bent in toward the bottom and the floor plate was tight to slide in and out. By expanding them out by prying out with a screwdriver handle, the floor plates fit better but the springs and followers always seemed OK. The screwdriver handle was just a tiny bit smaller than the opening in the bottom of the mag and was the perfect tool for the job...

I expected to see some obstruction on the bottom of the followers but they're are fine.

I'm looking forward to getting the Brownells mags...

Tony
 
J

jetinteriorguy

New member
Stuff like this drives me nuts, I love a good challenge trying to figure out problems of this nature. Maybe try replacing first the followers and then the springs and then both spring and follower from a magazine that works properly to narrow down what the problem is. If this doesn’t work then you’d know it’s the mag body for sure.
 
M

MarkCO

New member
Right before the Clinton ban went into effect, I bought 300 aluminum surplus magazines (20s and 30s) for $250. I spent days straightening bodies and feedlips. Then I had them coated with a Teflon based coating. Put in new no-tilt followers, quality springs and new floor plates. Sold them and made a few bucks. I still have 2 of each myself, and they work well, but I do baby them. Aluminum magazine feedlips are sensitive, and while I have a jog and the tool to straighten them, using mags with steel or polymer lips that are less prone to damage is just easier.
 
H

HiBC

New member
For the problem described (not accepting full capacity) I ask "What can cause that?"

1)Mag length,or height. Measure/compare

2) Mag width Can affect stack . Measure inside.

3) Spring bind. Fully compressed spring takes up "X" real estate. Wire diameter and number of coils. Poorly formed coils may not compress line to line

4) Follower geometry/size/ design/variation. Its possible (idk) follower and spring must be compatible.

There have been variants of anti-tilt followers. Its POSSIBLE a certain follower requires a certain spring.

5) Some magazines (not necessarily AR) require the spring be oriented and installed correctly. Maybe it can be put in backwards or upside down,
Maybe the spring wire end doohicky has to fit some tab.

Maybe they were assembled with wrong variation or reject followers.

One way to screw up old aluminum mags is to force load 21
 
G

Geezerbiker

New member
These mags are steel. I won't buy aluminum mags. I figure aluminum mags wouldn't wear well and how much more can a steel mag weigh anyhow...

The springs clip into the bottom of the followers so they only go in one way. I'm going to investigate this all later. Work has gotten a bit busy and I need to make hay while the sun is shining...

Tony
 
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