AR15.Com Archives
 Bushmaster Carbon 15 - 223 shell deflector problems
cdi3d  [Member]
1/31/2010 11:46:05 AM EST
I just acquired a Bushmaster Carbon 15 and I am a left hand shooter - Everything I have read sounded like it would not be a problem but I am taking some shells in the cheek - What is the best way to solve this porblem? I am using an m3 clone red dot with a 3x magnifier so most of the rail is used up - Anyone have any ideas? Thanks

Mike
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Mrmaigo  [Member]
2/2/2010 11:14:45 AM EST
Is it one with out a brass deflector?
Otherwise your options are. Sell it or see if they'll replace your upper. Build/modify an aftermarket deflector, Carbon's have those stupid raised rails and probably wont work for you. Or...
Modify the deflector. I believe you need to add hight or move the strikeface forward. Try electrical tape, I think thats what I read. There should be a guide some where.
CplDLB  [Member]
2/2/2010 11:25:01 AM EST
Pistol or carbine? If carbine have you tried adjusting the stock out more to bring your cheek weld farther back?
cdi3d  [Member]
2/2/2010 4:52:32 PM EST
Yes is has the brass deflector but it is still throwing them backwards - I might try to modify the brass deflector - What is that little bolt in the brass deflector for?

Mike
Mrmaigo  [Member]
2/2/2010 5:16:58 PM EST
Originally Posted By cdi3d:
Yes is has the brass deflector but it is still throwing them backwards - I might try to modify the brass deflector - What is that little bolt in the brass deflector for?

Mike


*googles up a bigger picture* No clue but it doesn't look well positioned
Electrical tape like 2 dimes on the face of it, I know it's ghetto but that's all I got.
BM also has forum in the Industry section, they should know better.
Dano523  [Moderator]
2/3/2010 4:15:51 AM EST
The ejection path of the spent case can be changed to forward eject the brass.

By lessing the tension of the ejector spring, instead of the cases being pivoted off at the buffer stalls at the rearward point to be pivoted off to the back of the rifle, instead, the spent case is not ejected until the forward movement of the bolt. But, keep in mind that if the ejector spring is too tensioned relieved (clipped too far down), then the spent case can be ejected back into the front of the ejection port. If such of a plan of action is to be tried, clip only one coil at a time and test each and every clipping attempt.

Also as stated, it's the stall of the buffer that you are trying to put into check with the spent case being pivoted off during such, and without any stall (dead blow effect of the buffer removed by packing the buffer weights in a stationary position via patches inside the buffer itself), the ejection path of the spent cases will be thrown forward as well. Note though, the stroke speed of the rifle is increased as well, and in cases where the mag may not have a strong spring and recover on it's own correctly (not jolt during stall to assist the mag in recovering), you may end up with some less then stellar mag feeds (read round jamming/not being stripped out of the mag correctly).
Rubline1  [Member]
2/3/2010 11:57:32 AM EST
Buy a brass deflector and install it.
rickyross556  [Member]
2/5/2010 8:31:12 PM EST
dano seams to know a thing or two about ejection.
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