Glock 21 and 45 Super?

Dashunde · November 27, 2012, 09:54 AM

I've been thinking about buying a 10mm barrel for my Glock 21 figuring its about as powerful as (inexpensive) auto-loaders can be.
That would require a aftermarket barrel, magazine from the G20, recoil buffer and a stiffer spring.
Total is around $170

Then 45 Super caught my attention... According to Buffalo Bore's info, its energy levels (ft/sec & ft.lbs) is right there just a hair behind the 10mm, and as a bonus the ammo is less costly.

Can I run small amounts of 45 super through a stock G21 barrel after only installing a ~24lb spring & aluminum guide rod plus a recoil buffer?
Totals around $45 - Seems like a much more cost effective way to get close to 1200fps & 700 ft.lbs.

Dr_Rich · November 27, 2012, 10:08 AM

Just from a price point, the 45 super seems like a good option. Would you be able to shoot standard .45 in that set up? Seems like it would be a lot of work for a regular 45. If not, then both of them would require you to swap parts.

kcub · November 27, 2012, 12:12 PM

I have a Colt .45 Super. You can also shoot standard .45 acp without changing anything.

chris in va · November 27, 2012, 02:17 PM

Don't forget, you'll have to chase that unique brass if you reload.

November 27, 2012, 09:54 AM	#1
Dashunde Senior Member Join Date: December 22, 2004 Posts: 2,018	Glock 21 and 45 Super? I've been thinking about buying a 10mm barrel for my Glock 21 figuring its about as powerful as (inexpensive) auto-loaders can be. That would require a aftermarket barrel, magazine from the G20, recoil buffer and a stiffer spring. Total is around $170 Then 45 Super caught my attention... According to Buffalo Bore's info, its energy levels (ft/sec & ft.lbs) is right there just a hair behind the 10mm, and as a bonus the ammo is less costly. Can I run small amounts of 45 super through a stock G21 barrel after only installing a ~24lb spring & aluminum guide rod plus a recoil buffer? Totals around $45 - Seems like a much more cost effective way to get close to 1200fps & 700 ft.lbs.

November 27, 2012, 10:08 AM	#2
Dr_Rich Senior Member Join Date: February 15, 2011 Location: Gods waiting room. Posts: 103	Just from a price point, the 45 super seems like a good option. Would you be able to shoot standard .45 in that set up? Seems like it would be a lot of work for a regular 45. If not, then both of them would require you to swap parts. __________________ Glock 26 \| Glock 36 \| Glock 17L \| Ruger LCP \| Llama .38spc \| NEF 10 gauge \| NEF 20 gauge pump \| Savage Mark II GL \|Remington 770 \| Remington 30/30 \| Remington 25/35 \|

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November 27, 2012, 12:12 PM	#3
kcub Senior Member Join Date: October 24, 2010 Location: Austin, Texas Posts: 3,318	I have a Colt .45 Super. You can also shoot standard .45 acp without changing anything.

November 27, 2012, 02:17 PM	#4
chris in va Senior Member Join Date: December 26, 2004 Location: Louisville KY Posts: 13,806	Don't forget, you'll have to chase that unique brass if you reload.