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Posted: 1/21/2006 6:08:52 AM EDT
I know the barrels are 18" but what is the port length? Rifle or Mid? Made me wonder on the other post 18" rifle pics.
Thanks,
Mike
Link Posted: 1/21/2006 7:24:50 AM EDT
I want to say that it's a rifle length gas system, but I'm not entirely sure.

Somebody else knows for sure.

Did you check out some of the SPR threads in the Industry Forum. Denny's Guns and MSTN I think have some on the SPR.
Link Posted: 1/21/2006 7:39:59 AM EDT
MSTN Built SPR

It sure looks like a rifle length.
Link Posted: 1/21/2006 1:52:53 PM EDT
Real SPR's do indeed have a rifle length gas system.
Link Posted: 1/21/2006 2:24:43 PM EDT
Link Posted: 1/21/2006 2:26:19 PM EDT

Originally Posted By bigbore:

Originally Posted By M700Police:
Real SPR's do indeed have a rifle length gas system.



When they should have a MID.....



Why?
Link Posted: 1/21/2006 2:27:55 PM EDT

Originally Posted By bigbore:

Originally Posted By M700Police:
Real SPR's do indeed have a rifle length gas system.



When they should have a MID.....



Intermediate length
Link Posted: 1/21/2006 2:31:26 PM EDT

Originally Posted By bigbore:

Originally Posted By M700Police:
Real SPR's do indeed have a rifle length gas system.



When they should have a MID.....




A good point.

Link Posted: 1/23/2006 7:39:17 AM EDT
Link Posted: 1/23/2006 7:42:53 AM EDT

Originally Posted By bigbore:

Originally Posted By Combat_Jack:

Originally Posted By bigbore:

Originally Posted By M700Police:
Real SPR's do indeed have a rifle length gas system.



When they should have a MID.....



Why?




Because the 18" w/rifle gas system requires a gas port big enough to step in.



I researched the hell outta this topic and came to the same conclusion.
Link Posted: 1/23/2006 8:06:20 AM EDT
[Last Edit: 1/23/2006 8:06:48 AM EDT by jjmcrowell]
If the rifle length gas system is working, why introduce a mid-length gas tube to the military supply system?
Link Posted: 1/23/2006 8:22:41 AM EDT
[Last Edit: 1/23/2006 10:10:18 AM EDT by Hokie]

Originally Posted By jjmcrowell:
If the rifle length gas system is working, why introduce a mid-length gas tube to the military supply system?



It works, that's proven, but the mid length system ensures a more reliable system. The rifle length system isn't the optimal set up as it'd be 'better' if the gas port was enlarged.

It works, but I think the point is that the mid length gas system may work a little better. For my own disclaimer...this all based on what I've read - I've yet to spend any time with an 18" AR.
Link Posted: 1/23/2006 9:23:12 AM EDT
I have an 18" like that, but I've never put it all together.

How would a 12.5 Mid work, BTW. I know that it would work with a can, but how about without?
Link Posted: 1/23/2006 9:55:44 AM EDT
Link Posted: 1/23/2006 9:59:21 AM EDT

Originally Posted By bigbore:

Originally Posted By Combat_Jack:
How would a 12.5 Mid work, BTW. I know that it would work with a can, but how about without?



Thats not a configuration I'd want to consider.

Why not got the the 14.5 MID? Then again, the benefits of a 16" MID are even better yet...



I figure that the 10.5's run OK, despite the fact that they shouldn't.... why not go for M4 velocity in a shorter package? If I want something longer, I'd get the 14.5 mid, or the 16 for a Title I.
Link Posted: 1/23/2006 10:07:53 AM EDT
[Last Edit: 1/23/2006 10:08:22 AM EDT by bigbore]
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