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View Full Version : Decided to SBR my Bushmaster.


nfa1934
07-10-2011, 10:07 PM
I really don't use it as a 20" rifle. I think if I shorten it down to 10.5" and start using my YHM Phantom suppressor on it, it will be far more enjoyable.

Any suggestions on uppers when my paperwork comes back? Kinda looking at a Noveske 10.5" SWITCHBLOCK. Are the shorter barreled ARs more finicky with cans? Are they more finicky anyway? The YHM Phantom I have is a 7.62 that I can use on a 5.56. Will the extra bore diameter of the 7.62 Phantom give me any options that wouldn't work well with a 5.56 can (the general consensus on another forum is that cans on 7" and 7.5" ARs is a no-go)?
FunkyPertwee
07-10-2011, 10:20 PM
These are always sold out, but some just came in stock like last weekend. I'd buy it up while I could.

http://www.aimsurplus.com/product.aspx?item=XSTU5005MOE&name=Spikes+Tactical+10.5%22+Complete+Upper+Receiv er&groupid=55
https://www.aimsurplus.com/EOS/images/product/XSTU5005MOE.jpg
nfa1934
07-10-2011, 11:34 PM
Can't buy that until the paperwork clears. Constructive possession.

Also, don't want the front sight assembly. Planning to use an Eotech.
Schuetzenman
07-11-2011, 06:07 AM
I really don't use it as a 20" rifle. I think if I shorten it down to 10.5" and start using my YHM Phantom suppressor on it, it will be far more enjoyable.

Any suggestions on uppers when my paperwork comes back? Kinda looking at a Noveske 10.5" SWITCHBLOCK. Are the shorter barreled ARs more finicky with cans? Are they more finicky anyway? The YHM Phantom I have is a 7.62 that I can use on a 5.56. Will the extra bore diameter of the 7.62 Phantom give me any options that wouldn't work well with a 5.56 can (the general consensus on another forum is that cans on 7" and 7.5" ARs is a no-go)?

Anything under 20" is more finicky. I think 10.5 is OK for length but you should give YHM a call and make sure your Suppressor is rated for that short of a barrel. You will be burning most of the powder in the suppressor, not in the barrel. I know there's 14.5" for the M4's, but is there a 12" out there?
FunkyPertwee
07-11-2011, 08:22 AM
Can't buy that until the paperwork clears. Constructive possession.

Also, don't want the front sight assembly. Planning to use an Eotech.

They sell it as a pistol upper, so I thought it would be fine.

Would the front sight really block the eotech? Seems like a lot of people have red dots on rifles with front iron sights. Maybe because the barrel is so short, the sight would block a lot more.
nfa1934
07-11-2011, 11:51 AM
Anything under 20" is more finicky. I think 10.5 is OK for length but you should give YHM a call and make sure your Suppressor is rated for that short of a barrel. You will be burning most of the powder in the suppressor, not in the barrel. I know there's 14.5" for the M4's, but is there a 12" out there?

One poster on a silencer forum already checked with YHM. They said 10.5 is fine, but no shorter. One other guy was trying to convince the original poster that his can was going to fill with unburned powder and eventually explode like a pipe bomb. YHM said there wouldn't be any problems.
nfa1934
07-11-2011, 11:51 AM
Mailed Form 1 today.
nfa1934
07-11-2011, 11:55 AM
They sell it as a pistol upper, so I thought it would be fine.

Would the front sight really block the eotech? Seems like a lot of people have red dots on rifles with front iron sights. Maybe because the barrel is so short, the sight would block a lot more.

It would be fine if I had a pistol receiver, but I have a rifle and a short upper in your possession along with a rifle receiver equals SBR, even if you don't put them together.
nfa1934
07-11-2011, 11:56 AM
They sell it as a pistol upper, so I thought it would be fine.

Would the front sight really block the eotech? Seems like a lot of people have red dots on rifles with front iron sights. Maybe because the barrel is so short, the sight would block a lot more.

It would be fine if I had a pistol receiver, but I have a rifle and a short upper in your possession along with a rifle receiver equals SBR, even if you don't put them together.
Helen Keller
07-11-2011, 01:11 PM
One poster on a silencer forum already checked with YHM. They said 10.5 is fine, but no shorter. One other guy was trying to convince the original poster that his can was going to fill with unburned powder and eventually explode like a pipe bomb. YHM said there wouldn't be any problems.

Pfffffft

IF theres that much unburnt powder you have issues to start with.
FunkyPertwee
07-11-2011, 05:22 PM
It would be fine if I had a pistol receiver, but I have a rifle and a short upper in your possession along with a rifle receiver equals SBR, even if you don't put them together.

Damn. Funny how its illegal to own two individually legal items simultaneously.

Thanks ATF! :salute:
nfa1934
07-14-2011, 09:44 PM
Thinking about this:

http://i584.photobucket.com/albums/ss286/nfa1934/10-NoveskeDDlite_Switch.jpg

10.5" Noveske Switchblock.
Schuetzenman
07-14-2011, 09:51 PM
That's a nice looking upper assembly, bet it's pretty expensive. http://noveskerifleworks.com/cgi-bin/imcart/display.cgi?item_id=105-556-sb&cat=119&page=1&search=&since=&status= Holy Hell! $1,435 is a whole rifle with change most places! :thud:
nfa1934
07-14-2011, 10:06 PM
PK has it for $959. Tht's why I was asking in another thread if anyone had ordered from them.

Still pricey, but supposedly runs well.
ready
07-16-2011, 08:18 AM
Why not just buy a 10.5 barrel and use it with your existing upper? The front sight will not get in the way of the eotech, it co-witnesses with your irons.
Solidus-snake
07-16-2011, 07:08 PM
That's a nice looking upper assembly, bet it's pretty expensive. http://noveskerifleworks.com/cgi-bin/imcart/display.cgi?item_id=105-556-sb&cat=119&page=1&search=&since=&status= Holy Hell! $1,435 is a whole rifle with change most places! :thud:

Thats a mere pittance to this fellow lol.
nfa1934
07-16-2011, 10:41 PM
Thats a mere pittance to this fellow lol.

Gonna go light an expensive cigar with a hundred dollar bill now.
Solidus-snake
07-16-2011, 11:00 PM
Gonna go light an expensive cigar with a hundred dollar bill now.

Lol ill take that off your hands if thats all your using it for, ill give you a $20 to use instead :)

Im just envious of your awesome collection such as that Rhino of yours and the AWESOME Osprey suppressor. I have been eyeballing them, too bad they are on the high side.
nfa1934
07-16-2011, 11:14 PM
Gonna go drink this when I finish the cigar:

http://i584.photobucket.com/albums/ss286/nfa1934/2011-05-20000755.jpg

Gonna drink it out of a gold diamond-encrusted goblet with "Pimp" written on it in rubies.
Schuetzenman
07-17-2011, 07:44 AM
The pimp goblet is OK as long as you don't mix it with Coke or Soda water.
nfa1934
07-17-2011, 03:53 PM
The pimp goblet is OK as long as you don't mix it with Coke or Soda water.

Can I mix it with ripple?
Schuetzenman
07-17-2011, 05:42 PM
Can I mix it with ripple?

:crying:Oh, the Humanity!:crying:
nfa1934
07-17-2011, 06:33 PM
:crying:Oh, the Humanity!:crying:

I have three bottles of 30 year Laphroaig. Maybe I could pour them in a bowl and make some sort of punch.

Question on topic, has anybody heard of M16 Clinic Viper uppers? I can get a 10.5" for $650, but it seemed a little heavy.