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Posted: 2/2/2021 6:09:46 PM EDT
Link Posted: 2/2/2021 9:19:25 PM EDT
[#1]
Difficulty of obtaining ammo would have been enough to make me choose something else.
Link Posted: 2/2/2021 9:38:46 PM EDT
[#2]
Link Posted: 2/3/2021 1:31:33 AM EDT
[#3]
So you just use the PF45 frame and get a .50 GI conversion upper?  I was looking into doing a 10mm build, just cuz.  This project sounds interesting, so send us pics when it's done!
Link Posted: 2/3/2021 9:16:51 AM EDT
[#4]
Link Posted: 2/7/2021 4:25:05 PM EDT
[#5]
You can also go with a PF45 frame and build into 45 super. IIRC you can get an adapter barrel to convert to 10mm too. Can't remember but there might be a 460 Rowland conversion too.
Link Posted: 2/7/2021 5:10:20 PM EDT
[#6]
...pics?
Link Posted: 2/7/2021 5:33:51 PM EDT
[#7]
Link Posted: 2/7/2021 6:33:37 PM EDT
[#8]
Link Posted: 2/7/2021 11:50:16 PM EDT
[#9]
If you haven't already ordered parts to finish the lower, make sure that you get the correct Gen 4 G21/SF trigger housing. The Gen 3 will not work without heavy modifications and it is also too short and will rock on the trigger housing pin.

Gen 3 on top of a Gen 4 housing                                                                                    Modded Gen 3 on top

Attachment Attached File
Attachment Attached File


As you can see there is quite a bit of difference between the Gen 3 and Gen 4 trigger housings. And the Gen 4 G21/SF trigger housing will still need a slight modification to sit in the frame correctly.

Marine Gun Builder has a good  (but long) video on how to fit the Gen 4 housing into the PF45 frame.



Link Posted: 2/8/2021 12:31:23 PM EDT
[#10]
Link Posted: 2/8/2021 12:53:58 PM EDT
[#11]
Link Posted: 2/8/2021 12:55:43 PM EDT
[#12]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Thanks!!!

I haven't order the lower parts yet.
View Quote
You will be better off trying to buy all OEM parts individually. Unfortunately most places are out of stock. I looked at all my go to vendors for the Gen 4 trigger housing and everyone is out.
Link Posted: 2/8/2021 1:15:33 PM EDT
[#13]
Link Posted: 2/8/2021 2:21:26 PM EDT
[#14]
That should leave a bit of a wound channel.
Link Posted: 2/8/2021 6:49:10 PM EDT
[#15]
Good lord that's a cannon.
Link Posted: 2/8/2021 9:53:08 PM EDT
[#16]
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