Compact .45 question.

[Shorty 45 MK2]

Does anyone know if the spacers from the promag 10rd .45 magazines for full size 3rd gens work on the 8rd 4506 magazine in a 4516 or similar 7 shot compact .45?

I tried using the search function but don't come up with anything.

Was thinking it might be nice to carry 8rd mags as spares in place of 7rds since their not much taller and you get one extra round. If they don't it's no big deal just wondering.

Thanks.

 

[cobra357]

While it will fit the 8 round mag, the mag won't seat. If you ground a little off then maybe. Also the spacer has a tab that would extend about an 1/8th of an inch below the baseplate as the Promag has a thicker base.

 

[BMCM]

Those promag spacers would need a good deal of trimming and test fitting to mate up with a 8rd mag in a 7rd magwell. Which is fine since there's no real need for plastic spacers anyway. Those 8rounders will work just fine in any of the 7shooters and are just as reliable as the 7 shot mags in those guns. I used 'em regularly both at the range and as carry reloads.

Cheers
Bill

 

[Shorty 45 MK2]

Ok, thanks!

 

[Fastbolt]

I also carried an occasional 8-rd 4566TSW magazine as a spare for my 4513TSW (7-rd mags). I don't "crank down" with my little finger, anyway, so the lack of a "sleeve" and/or not feeling something under that finger doesn't bother me.

However ...

Inserting the longer mag with the slide forward is one thing (slide stops it), but bear in mind it's not a good idea to get carried away when inserting a mag and SHOVING the mag up into the grip frame when the slide is locked back.

No sense shoving the mag too far upward, excessively hitting against and stressing the ejector (bypassing the mag catch).

 

[vigil617]

I also carried an occasional 8-rd 4566TSW magazine as a spare for my 4513TSW (7-rd mags). I don't "crank down" with my little finger, anyway, so the lack of a "sleeve" and/or not feeling something under that finger doesn't bother me.

However ...

Inserting the longer mag with the slide forward is one thing (slide stops it), but bear in mind it's not a good idea to get carried away when inserting a mag and SHOVING the mag up into the grip frame when the slide is locked back.

No sense shoving the mag too far upward, excessively hitting against and stressing the ejector (bypassing the mag catch).

Thanks for this good tip, Fastbolt. By pure dumb luck, I guess, my habit when inserting a mag into my autos is to do so with the slide forward, just so I consciously have to rack the slide to chamber a round. Just a safety precaution for myself, but I'm glad to learn there is a good mechanical reason to do it this way too.

 

[nocents]

Inserting the longer mag with the slide forward is one thing (slide stops it), but bear in mind it's not a good idea to get carried away when inserting a mag and SHOVING the mag up into the grip frame when the slide is locked back.

Fastbolt.....is this just a bad practice with the extended mags only that don't have a base plate as a bumper???......at the range I have routinely loaded full mags with locked back slide....but I don't get "carried away" as you say....

 

[Big Shrek]

There is an old-fashioned method for making your own spacers...

But right this minute, I'm sneezing so much my brain just shut down...lol
Look up plastic molds...do a few u-tubes...you'll figure it out.

 

[gunhobbit]

Those promag spacers would need a good deal of trimming and test fitting to mate up with a 8rd mag in a 7rd magwell. Which is fine since there's no real need for plastic spacers anyway. Those 8rounders will work just fine in any of the 7shooters and are just as reliable as the 7 shot mags in those guns. I used 'em regularly both at the range and as carry reloads.

Cheers
Bill

This.

I've been running 8s in my 4516 CCO Frankengun with no problem. I was worried about the "overinsertion" problem, but the wisdom - or guidance, at least - here was that the ejector would keep that from happening and so far so good. That said, I haven't been jamming the heck out of 'em in there, either.

The spacers are nice if you want to feel like you've got a full sized grip, but otherwise I wouldn't worry much about 'em.

 

[Fastbolt]

Fastbolt.....is this just a bad practice with the extended mags only that don't have a base plate as a bumper???......at the range I have routinely loaded full mags with locked back slide....but I don't get "carried away" as you say....

Ever notice how the older extended factory mags for the 59XX & 69XX guns had a raised cutout to stop over-insertion?

There's a difference between a brisk & firm insertion and trying to shove the mag up the mag well so hard that loose rounds fly free out the top ...

 

[nocents]

Ever notice how the older extended factory mags for the 59XX & 69XX guns had a raised cutout to stop over-insertion?

There's a difference between a brisk & firm insertion and trying to shove the mag up the mag well so hard that loose rounds fly free out the top ...

thank-you.....brisk and firm I understand

 

[Fastbolt]

As a firearms enthusiast who later became a firearms instructor when we changed over from service revolvers to semiauto service pistols, there once came a day when I realized I was automatically & unconsciously using less force when inserting fresh magazines into my pistol with the slide locked back, versus when the slide was forward in-battery.

I sort of suspect that it was simply a developed reaction and response to the different amounts of force required to properly seat the mags under both conditions, and subconsciously learning to recognize when either condition existed without having to stop and think about it.

Sometimes an insufficient amount of force is used which may fail to properly seat a mag when the slide is forward in-battery, and firing the chambered round may dislodge the mag enough so a fresh round isn't stripped from the mag and chambered. Not good when it's happening on-the-clock, so to speak.

These patterned responses don't usually seem to happen overnight, though, and require a goodly amount of proper practice to develop & reinforce them (as improper practice might unfortunately reinforce existing bad habits ).