AR Sponsor
Posted: 5/14/2016 10:04:46 AM EDT
What's the story on this?
|
|
Quoted: Quoted: Rra 9mm? https://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=242 oops never mind |
|
Quoted:
Can these still be used on a 5.56 build? Quoted:
Quoted:
Quoted:
I don't know but I think I may need one. Just one? Can these still be used on a 5.56 build? Depends if it has the cut for the cam pin milled inside the hump on the left side. I have seen 9mm upper both ways. |
|
Quoted:
Depends if it has the cut for the cam pin milled inside the hump on the left side. I have seen 9mm upper both ways. Quoted:
Quoted:
Quoted:
Quoted:
I don't know but I think I may need one. Just one? Can these still be used on a 5.56 build? Depends if it has the cut for the cam pin milled inside the hump on the left side. I have seen 9mm upper both ways. And if it has the hole for the gas tube to pass through the front. 9mm AR is blowback operated and doesn't need one. |
|
Quoted:
Depends if it has the cut for the cam pin milled inside the hump on the left side. I have seen 9mm upper both ways. Quoted:
Quoted:
Quoted:
Quoted:
I don't know but I think I may need one. Just one? Can these still be used on a 5.56 build? Depends if it has the cut for the cam pin milled inside the hump on the left side. I have seen 9mm upper both ways. RRA told me their 9mm uppers are cut for the cam pin. They do need a hole cut for the gas tube. ADCO does it, but I believe that JT does not. |
AR Sponsor