The 10/30 PMag - How To

[f4ipowered]

10-30 Pmag

I just recently purchased some 10-30 pmags from an online vendor. They are modifying the 30 round Pmag by placing a machined delrin spacer inside the magazine body. The combination of the spacer as well as the spring reaching the stack height earlier creates a 10 round magazine. The construct is CA compliant. Permancy as discussed in this thread is really difficult to define. Most of the metal magazines have stamped features to interfere with the follower to limit capacity. This is permanent so far as you dont have a file/dremel/bridgeport. So as far as the ideal situation goes, I think that the spacer modified magazines are it. In the going to the range/ LEO situation where you need to be compliant and along the letter of the law they do that. It only holds 10 rounds, period. However in a SHTF situtuation all your doing is taking a spacer out to restore the fully functional 30 round Mag.

[aplinker]

What is the date of your PMAGs?

http://www.magpul.com/catalog/index.php?main_page=product_info&products_id=271

All mine work great and drop free. The fact you say you have to slam hard even when the bolt is locked back seems odd to me. Is it binding in the mag well? I would inspect the magazine for any wear marks to locate where you are having the issue.

Some lowers have magwells that aren't cut correctly.

He should take his upper off the lower and look to see where the mag is binding. Usually the ridges are the issue.

[Chunky_lover]

What is the date of your PMAGs?

http://www.magpul.com/catalog/index.php?main_page=product_info&products_id=271

All mine work great and drop free. The fact you say you have to slam hard even when the bolt is locked back seems odd to me. Is it binding in the mag well? I would inspect the magazine for any wear marks to locate where you are having the issue.

Date is 5/08 They are 10/30's so I dont know if they were made like that or were modified by someone. It seems like it may be hitting the mag release thing that sticks out to lock it, but all my other metal type mags work fine. These are the first p mags I bought. I only used them a few times, so maybe after alot of use they will break in. Its nothing that effects performance, they work great just hard to get in. I did notice after a few reloads they wouldnt lock the bolt back when empty, I thought maybe because they were hot and the rifle was hot. I also use a bullet button and im not sure if I could have put it in tighter then normal when I first installed it, but all other type mags work with no problems. I did check for wear and the only spot is on the back rib area 1 inch from top is the wear. But when I slid in the mag it goes in easily until it hits the mag release thing, then I have to slam it in.

[The Cable Guy]

I just recently purchased some 10-30 pmags from an online vendor. They are modifying the 30 round Pmag by placing a machined delrin spacer inside the magazine body. The combination of the spacer as well as the spring reaching the stack height earlier creates a 10 round magazine. The construct is CA compliant. Permancy as discussed in this thread is really difficult to define. Most of the metal magazines have stamped features to interfere with the follower to limit capacity. This is permanent so far as you dont have a file/dremel/bridgeport. So as far as the ideal situation goes, I think that the spacer modified magazines are it. In the going to the range/ LEO situation where you need to be compliant and along the letter of the law they do that. It only holds 10 rounds, period. However in a SHTF situtuation all your doing is taking a spacer out to restore the fully functional 30 round Mag.

Brilliant idea, where did you get them from?

[Vinz]

Pmag links to help with the searching.

10/10's http://www.calguns.net/calgunforum/s...d.php?t=116173
10/20's http://www.calguns.net/calgunforum/s...d.php?t=125645

I spoke to a Sheriffs officer about these at the range and said that if you epoxy over the button to remove the base plate that would provide enough permanency. He agrees the wording is vague but no button removes the ability to reverse without ease. Much more than a rivet in the metal mag versions.

Vinz

[AlohaRover]

Another thought, with both this conversion and a 10/20 conversion would be to drill a small 1/8" hole through the floor plate and mag body. Insert a pin. Fill the hole with a little epoxy. Impossible to remove the floor plate now. But if you move, you can cut the epoxy plug out, drift the pin out, and return the mags to true 30rds

[natasha69]

so dumb question, but since 30 mags are illegal here in the great Republik of Kalifornia, how do we get our hands on them, so we can modify them to become only 10's?

[Chunky_lover]

so dumb question, but since 30 mags are illegal here in the great Republik of Kalifornia, how do we get our hands on them, so we can modify them to become only 10's?

Well I just got some last week from 44 mag. You pay an extra $1.75 or something and they will disassemble them as parts, then you modify them and reassemble them for 10 rounders. I am going to use self tapping screws on the sides, then spot weld them. So I ordered 30 rd mags and they took them apart and shipped them. 2 cost me less then $40 total shipped.

[Vinz]

so dumb question, but since 30 mags are illegal here in the great Republik of Kalifornia, how do we get our hands on them, so we can modify them to become only 10's?

See post #50 and check the links....or have me make you a few.

See AlohaRover for mags, usually disassembles them for no charge. Gets you the right follower for a little extra.

vinz

[megavolt121]

Well I just got some last week from 44 mag. You pay an extra $1.75 or something and they will disassemble them as parts, then you modify them and reassemble them for 10 rounders. I am going to use self tapping screws on the sides, then spot weld them. So I ordered 30 rd mags and they took them apart and shipped them. 2 cost me less then $40 total shipped.

How are you going to spot weld the metal screws to a plastic mag?

[megavolt121]

In the going to the range/ LEO situation where you need to be compliant and along the letter of the law they do that. It only holds 10 rounds, period. However in a SHTF situtuation all your doing is taking a spacer out to restore the fully functional 30 round Mag.

Unless the S in the SHTF scenario is one where CA completely falls apart and is no longer existent, you have absolutely NO LEGAL STANDING
to MANUFACTURE a 30 round mag. You will get nailed.

[Darklyte27]

if you didnt notice, the creator of this thread has a web store, you can order the parts from him without paying a "disassemble" fee.for alot cheaper.

A disassemble fee is just another way for some retailers to squeeze more $ from you. it takes about 5 seconds and barely any effort to take a mag apart.
We are grateful for AlohaRover to help us out.

[AlohaRover]

Thanks, and yes since I get asked so much...I do not charge anything to take the mags apart.

The mags cost 13.50ea 30 and 20. Add them to the cart and place your order. Oh and I sell Metal Brownells 30rds for the same price
If I see the address is CA I just take them apart prior to shipping.....No Charge.

Pete

[asymmetricalwarfar3]

Do you "fix" the Brownells the same way?

[Chunky_lover]

How are you going to spot weld the metal screws to a plastic mag?

I thought it was the c products 10/30 metal mags, that is what I got, didnt see the pmags.