newbie P-07 mag questions x-grip update

[gwes351]

I have a P-07 9mm ordered and joined here recently to get schooled on CZs.  While this will be my first CZ, I am very familiar with other handguns (glock, sig, walther, HK, browning, FN .......).   Based on my research and reading so far, I have a couple of mag questions.  I've read what "P series" mags will load and lock into my P-07, with some extending beyond the grip - so I get that.  For those longer mags it seems x-grip does not make any for CZ.  I was wondering if anyone has tried to fit (and modify) an x-grip for another pistol for the P-07/P-010c with the longer mags (like 19 rd for P-10f)?  While I don't have the pistol yet, I do have a couple of P-07/P-10c mags that I tried my HK (P2000/P30) and glock x-grips on and found that:
- both will slide onto the mag body - albeit just a little loose (glock fitting a tad more snug)
- to fit the mag well surface both would require modification (if the shape and amount of material allowed that)
So I was wondering if anyone has experimented with this approach?

Second question is about the +2 extension used on the P-07/P-10c 15 rd mags to get to 17.  It appears it is just a extended mag base pad using the original 15rd mag spring.  So how reliable is that configuration - especially feeding the last 2 rds with the 15 rd spring?  And is there a "+10%" spring recommended (and that is reliable)?  Note that my personal experience with aftermarket springs has been mixed.  On 1 hand I've found wolf & glock "+" springs to be good, while trying magguts & pearce +2 in my G43 was not reliable.

Thanks

[eastman]

For a P-07, mags marked P-07 or P-10c will fit the grip length and P-09 and P-10F mags will lock in place, but extend with a gap below the grip.

[CCWLearner]

The longer P-09/P10-F magazines will run in a P-07 according to everything I have read, although I haven't tried it myself.  I'm not familiar with "x-grip" but it sounds like a mag sleeve that you slide on to fill the gap between the grip and the base pad.  There isn't one commercially available, but some people are 3D-printing them, including one person who has a thread about it here in this subforum.

The factory +2 extensions work fine with the factory springs.  Some third-party vendors who make larger extensions, like Shield Arms, include a higher rate spring with their mag extension to maintain reliability.

[eastman]

The longer P-09/P10-F magazines will run in a P-07 according to everything I have read, although I haven't tried it myself.  I'm not familiar with "x-grip" but it sounds like a mag sleeve that you slide on to fill the gap between the grip and the base pad.  There isn't one commercially available, but some people are 3D-printing them, including one person who has a thread about it here in this subforum.

The factory +2 extensions work fine with the factory springs.  Some third-party vendors who make larger extensions, like Shield Arms, include a higher rate spring with their mag extension to maintain reliability.

the longer mags work fine, you just can't slam them in hard or the top of the mag will crash into the ejector (which might not end well for either part)

[CCWLearner]

the longer mags work fine, you just can't slam them in hard or the top of the mag will crash into the ejector (which might not end well for either part)

Yep, and from reading some of the threads in this subforum, it seems to end in a particularly bad way for the ejectors in the P10 series.

I personally like to give my mags a light bump underneath when inserting them, but slamming them in seems like a bad idea.  I haven't noticed any deformation of my ejectors after thousands of rounds and fairly routine inspections.  I did notice on one of them some light coining pattern on the sides, which inspired me to move back from a 15 lb to 18 lb recoil spring.

[gwes351]

thanks for all the tips guys

[Dasashooter]

I have tried a p09 mag in a p07 to see and it works at least for range use. I would assume you could modify an x grip to work or just create something similar if you have materials to do it. As far as mag extensions I haven’t tried the +2 with a factory spring but the shield kits work well with their included spring.

[redhawkone]

For what its worth,my CZ75 and PCR mags work as a back-up (although they are a little loose from side to side).

[gwes351]

redhawkone - I wouldn't have thought of CZ75 mags.  Interesting that even though loose in the well, they still fire.

[gombey]

the longer mags work fine, you just can't slam them in hard or the top of the mag will crash into the ejector (which might not end well for either part)

Thanks for this bit of info...is going to be an issue if the slide is locked back?

If so I’m going to have to carry the 15 rounders exclusively.

[eastman]

the longer mags work fine, you just can't slam them in hard or the top of the mag will crash into the ejector (which might not end well for either part)

Thanks for this bit of info...is going to be an issue if the slide is locked back?

If so I’m going to have to carry the 15 rounders exclusively.

yes, with the slide locked back, a hard mag slam will crash the mag into the ejector with high probability of jamming the mag in too far and bending or breaking the ejector. A spacer sleeve that prevents over-insertion will solve the problem.

[gombey]

yes, with the slide locked back, a hard mag slam will crash the mag into the ejector with high probability of jamming the mag in too far and bending or breaking the ejector. A spacer sleeve that prevents over-insertion will solve the problem.

Well crap! Oh well I guess I need to get a base plate extension or two.

[gwes351]

Couple of weeks ago I searched the x-grip website to see if any of them were close in profile to fit a P series mag (to use a 15 or 17 round in a P-10S for example).   I was looking to see if any close profile could be modified to reasonably fit - and I found 1:  for the S&W M&P 9/40C (link below).  It looked close on the screen so I ordered 2 from Greg Cote.  They arrived last week and here's what I found playing around and fitting them to a P series mag:
- fit the body of the mag and slides down like other x-grips I have - so the S&W mag body is very close in dimension & shape to P series
- the S&W x-grip rear doesn't seat well to the P series base plate - but fits better when you trim off some of the edge there (still doesn't fit well, but closes the gap noticeably)
- x-grip finger (for pinkly finger) well fits my size hands perfectly and feels natural (I have large hands - but not XL hands)
- the modified x-grip on a mag loads and locks into the gun with just a tiny bit of push
- I fired this modified x-grip on both a P series 15 and 17 rd mag with no issues at all (in a P-10S).  This was a full capacity +1
- while there are still some gaps in fit, the x-grip felt good in my hand
- I'll fire this combination a few more times, but wouldn't hesitate to use it if it continues to function (which I expect).

Again, while not optimum in fit/appearance, this options seems to work just fine _ for me at least.  So, I thought I'd share 


https://x-grips.com/sw/mp-940c-custom/

[cannj12]

I have not used the X-grip with my P07 but the P10C mags work absolutely fine (I have four of them) and there are no issues at all. The amount of distance the edge of the mag sticks out is really not as noticeable to me as some make it out.

[radagast]

     Before sending my NJ felonious 15 round mags to my daughter in NC, I compared them to my 10 rounders. The springs and followers appeared to be identical. The P07s ejector would probably be safe from extended mags as long as the they were not fully loaded, but why take the risk ?