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View Full Version : PTR,G3, and Cetme Mags


larryh
09-27-2009, 9:49 PM
Looking for imput on the best way to run my new Cetme.
Will be going Raddlock and have some 20 round G3alum rebuild kits
I can modify into 10 rd by blocking the follower to hold only
10 rds. The issue appears to require some degree of permanance
in making the modified 10 rd mag. I have researched Calgunners that
have used rivets, rods, etc.. with epoxy to effect this mod.
Also epoxy the floorplate so as to seal up the mag for any
possibility of further changes(cannot open mag for cleaning).
Does anyone have a preferred mod for the alum G3 rebuild kits?

Another way I can see attempted is to cut the mag body (length
to accept less than 10 rds) in such a way so as to still be able to attach the mag floorplateto the new bottom of the mag body but I am not sure the
lips of the floorplate will have enough material on the new base
of the alum mag body to hold under the pressure of the spring
in a loaded mag. Has anyone tried this mod?

There are 5 rd Cetme mags and 30 rd G3 mags out there(expensive$30)
that may be the preferred way to go.
Any advice on these matters appreciated.

a1fabweld
09-27-2009, 9:53 PM
You can buy factory 10 rounds G3 mags or you can install a rivet @ 10rds.

larryh
09-28-2009, 12:43 AM
Yes thank you. I intended to refererence that option but mistakenly
typed 30 rather than 10.

There are 5 rd Cetme mags and 30 rd G3 mags out there(expensive$30)
that may be the preferred way to go.

If there is DA and DOJ sensitivity I can see leaving the kits alone
and useing a bunch of the 5 rd (looks like they can be had for $10)
or invest in several of the 10 ($30+ea.) for use in CA.
Its a shame though as the 20 rd G3 kits are so cheap.

a1fabweld
09-28-2009, 1:23 AM
My 1st PTR came with a rivet blocked 10/20 mag from Lanworld. Never been questioned about it.

swerv512
09-28-2009, 4:37 AM
i believe CWS has 10 rd G3 mags...

97F1504RAD
09-28-2009, 8:19 AM
Couple options for you. You can buy 10 round mags here. Pricey option

http://www.hkparts.net/shop/pc/viewPrd.asp?idproduct=351&idcategory=111

Or you can buy some Blocks from Duraglock I think it is and install then and then seal the floor plates with JBWeld or some other form of epoxy.

Barney Gumble
09-28-2009, 10:35 AM
I like rivets because they're sufficiently permanent that you don't have to epoxy the floorplate, so you can always open the mag for cleaning if necessary.

My 1st PTR came with a rivet blocked 10/20 mag from Lanworld. Never been questioned about it.

Can you post a picture of this? I'd like to see where the rivets are. I've tried riveting on the front and back but it doesn't work...you have to do both sides because the followers will tilt, but one side of the mag has a still strip in it that I can't drill through.

97F1504RAD
09-28-2009, 12:12 PM
If you look at the mag in this picture you can see the rivet location.

http://farm4.static.flickr.com/3191/2785230574_b612dedb36_o.jpg

Barney Gumble
09-28-2009, 1:17 PM
If you look at the mag in this picture you can see the rivet location.

Interesting - thanks!

larryh
09-28-2009, 1:48 PM
The rivet can easily be drilled out without damageing the mag.

Barney Gumble
09-28-2009, 4:27 PM
To me, a rivet solution is permanent because drilling out a rivet takes tools and time. If I stuck a machine screw through the mag to block the follower and locked it with a wing nut, thereby making it easy to remove with my bare hands, that would be a different story.

That's my perspective anyway. Do what you're comfortable with. I basically shoot at the range and I'll never get hassled there for rivets. If I were shooting on public land staffed by over-zealous, poorly informed rangers, I might go the extra step of only bringing mags with epoxied floorplates for that location.

larryh
09-29-2009, 12:41 AM
I think I will start off with a few 5 rd mags and monitor
the climate on the acceptable use of 20 rd kits in 10/20 applications.
May schedule a drive over the border to check out uninhibited functions.

Ravenslair
09-29-2009, 2:54 AM
I cut the mag body down. I left enough material to roll over and create new lips to hold the floor plate in. Works great. I did reinforce it with duct tape and have had zero issues.

Barney Gumble
09-29-2009, 10:11 AM
I think I will start off with a few 5 rd mags and monitor
the climate on the acceptable use of 20 rd kits in 10/20 applications.
May schedule a drive over the border to check out uninhibited functions.

That's kind of like saying, "I think I'll ease my way into this new 65 mph speed limit". The law has been on the books for a long time and it has been read and thoroughly analyzed on this board many times by legal and non-legal minds alike. People have been using these types of modified mags and there haven't been any legal issues.

slappomatt
09-29-2009, 1:52 PM
If you look at the mag in this picture you can see the rivet location.

http://farm4.static.flickr.com/3191/2785230574_b612dedb36_o.jpg

That is a beautiful rifle!