Glock 20SF or 21SF

[DavidR310]

Which way is more ideal?

Getting a 20SF or 21SF and getting a 45acp or 10mm conversion barrel?

[350skylark]

I dont think that the 20 really converts to 45... unless your taling about a complete upper assembly

[350skylark]

Quote from a thread quoting another thread, "the breach face on a 10mm slide is .433" wide and a .45 slide is .483" wide. The barrel hood is cut to fit the slide breach face so the 10mm hood is .425" wide and the .45 is .475" wide."

[KIDRR]

The correct answer is always buy both

[Click Boom]

Gen Fo

[RangemasterP226]

Actually, the correct answer to your question is to buy the pistol that you would buy if you could only buy one of them. For many practical purposes I assume that would be the Glock 21 SF. So get that one and then if you want you can look into a 10 MM conversion.

[blackrat]

buy one, get the complete upper for the other is the most reliable solution. it's easier to find 21 uppers for sale, so the question is which complete pistol is the cheapest to get and does that balance out the cost of getting the other upper.

[bsumoba]

Glock 20...10mm > 45ACP in power factor

Glock 20 conversion kits in 357sig, 40 cal, 9mm, 9x25 Dillon.

im biased though :/

[DavidR310]

The correct answer is always buy both

Gen Fo

Actually, the correct answer to your question is to buy the pistol that you would buy if you could only buy one of them. For many practical purposes I assume that would be the Glock 21 SF. So get that one and then if you want you can look into a 10 MM conversion.

I am looking to get a gen4 for sse, so it is literally coming down to choosing one.

[Bill Steele]

There is no difference in the receivers (people call these frames or "lowers").

The slides are very different. The 20 (10mm) is quite a bit heavier (less metal milled away, helps with hotter recoil of full house 10mm). The breech face is wider on the 21 slide, so nobody i know makes a 20 to 21 conversion barrel (10mm to 45 conversion).

The magazines are different.

So my recommendation is to buy either g21 or g20, then buy a complete slide assembly in the other caliber. Keep the mixing of slides and receivers within generations (that is, Gen3 G20 gun, Gen 3 G21 complete slide, etc.) Along with the slide, buy a few magazines in that caliber. You now have a complete factory G20 ans G21, the only thing you can't do is dual wield them.

[DavidR310]

There is no difference in the receivers (people call these frames or "lowers").

The slides are very different. The 20 (10mm) is quite a bit heavier (less metal milled away, helps with hotter recoil of full house 10mm). The breech face is wider on the 21 slide, so nobody i know makes a 20 to 21 conversion barrel (10mm to 45 conversion).

The magazines are different.

So my recommendation is to buy either g21 or g20, then buy a complete slide assembly in the other caliber. Keep the mixing of slides and receivers within generations (that is, Gen3 G20 gun, Gen 3 G21 complete slide, etc.) Along with the slide, buy a few magazines in that caliber. You now have a complete factory G20 ans G21, the only thing you can't do is dual wield them.

Sounds good. Get a gen4 21SF before sse ends and then later get a gen4 20SF slide later. got it.

Thanks everyone.

[Oceanbob]

Sounds good. Get a gen4 21SF before sse ends and then later get a 20SF slide later. got it.

Thanks everyone.

You don't have to SSE a 20SF. They don't label a SF in Gen 4.

You must SSE a Gen 4 Glock 20. Which has the same grip as the 20SF.

[Hoffer]

G21 SF with a 460 Rowland conversion