Finally finished my 450 BM Dissy retro build

Talk about the AR15 style rifles chambered in 450 Bushmaster.

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Finally finished my 450 BM Dissy retro build

Postby s4s4u » Mon May 17, 2021 6:53 pm

This has been a work in progress for about 6 months but Sunday I finally had the time to giterdun. The barrel started out as an original 20" Bushmaster that I cut down to 16" and threaded (the hard way) for the 11/16"x24 TPI flash hider. Aero stripped upper. A2 FSB that is attached with #8x32 set screws. Triangle handguard cap attached to FSB with #10x32 screw. Carbine length gas with AGB as the barrel has a .093" port. I opened up the ejection port with a (ahem) "rotary tool" and it turned out great, all you need is a steady hand.

Was a long day, the Guiness hit the spot:

Image

Under the hood:

Image

Oops, almost forgot the sling swivel:

Image

The lower will be next, already have the striped Aero, A2 stock assembly and LPK. Just need to find another empty day.

ETA: Barrel size 16" now.
Last edited by s4s4u on Tue May 18, 2021 8:45 am, edited 1 time in total.
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Re: Finally finished my 450 BM Dissy retro build

Postby kottke_35 » Mon May 17, 2021 8:37 pm

Looks cool!

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Re: Finally finished my 450 BM Dissy retro build

Postby Al in Mi » Tue May 18, 2021 2:47 am

16" ?
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Re: Finally finished my 450 BM Dissy retro build

Postby s4s4u » Tue May 18, 2021 8:44 am

Al in Mi wrote:16" ?


Yep. Forgot that tidbit. Want to stay out of "stamp" territory.
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Re: Finally finished my 450 BM Dissy retro build

Postby Texas Sheepdawg » Thu May 20, 2021 3:10 am

NICE!
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Re: Finally finished my 450 BM Dissy retro build

Postby s4s4u » Sat Oct 09, 2021 4:20 pm

Finally built up the lower to complete my A2 mock Dissy. Loading up some fodder right now and hope to get to the range before deer season.

Image
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Re: Finally finished my 450 BM Dissy retro build

Postby Hoot » Sat Oct 09, 2021 8:14 pm

You just need the M-7 on the end of it. Great for greeting door to door sales people. ;)

Looks just like the 7.62x39 unit next to my bed. Image

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Re: Finally finished my 450 BM Dissy retro build

Postby s4s4u » Tue Oct 12, 2021 9:10 am

Hoot wrote:You just need the M-7 on the end of it. Great for greeting door to door sales people. ;)

Looks just like the 7.62x39 unit next to my bed. Image

Hoot


Ha, ya that BIG hole in the end might get their attention :lol:
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