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Posted: 2/11/2009 4:28:41 AM EDT
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I know I'm probably beating a dead horse here but I still don't have my head wrapped around this. With a 16" barrel, semi auto only, which is better and WHY? I know with a middy you get a longer site radius but, other than that?
All barrels are scarce right now but, mids seem really few and far between. Should I really hunt for one over the other or just be happy with whatever I can get my hands on? Gimlet |
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Quoted:
At one point I think I read that you shouldnt get a midlength on a 16" due to the short distance between the gas port, and the end of the barrel. Which gives a shorter time for the gas to actuate the system. Im no expert, just something I remembered. BS midlengths work just fine |
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Quoted:
At one point I think I read that you shouldnt get a midlength on a 16" due to the short distance between the gas port, and the end of the barrel. Which gives a shorter time for the gas to actuate the system. Im no expert, just something I remembered. Perhaps you're misremembering. It's the CAR gas system which isn't ideal with a 16" barrel because the distance from gas port to muzzle is too long. But any quality 16" CAR system is fine (for example, Colt 6920, LMT Defender, et al). It goes something like this: CAR is ideal with 14.5" MID is ideal with 16" RIFLE is ideal with 20" Middy is said to be less harsh pressure / cycling / ejection and thus more reliable than the CAR, but you and I would never notice the difference. That said, there isn't any noticeable (to me) difference in recoil impulse between a quality CAR or Middy. The main difference would be sight picture / longer handguards of the Middy. Get whichever is available. Shoot. Enjoy. ETA: I'm sure someone will be along shortly to clarify my rambling &/or make corrections.  
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Quoted:
Quoted:
At one point I think I read that you shouldnt get a midlength on a 16" due to the short distance between the gas port, and the end of the barrel. Which gives a shorter time for the gas to actuate the system. Im no expert, just something I remembered. Perhaps you're misremembering. It's the CAR gas system which isn't ideal with a 16" barrel because the distance from gas port to muzzle is too long. But any quality 16" CAR system is fine (for example, Colt 6920, LMT Defender, et al). It goes something like this: CAR is ideal with 14.5" MID is ideal with 16" RIFLE is ideal with 20" Middy is said to be less harsh pressure / cycling / ejection and thus more reliable than the CAR, but you and I would never notice the difference. That said, there isn't any noticeable (to me) difference in recoil impulse between a quality CAR or Middy. The main difference would be sight picture / longer handguards of the Middy. Get whichever is available. Shoot. Enjoy. ETA: I'm sure someone will be along shortly to clarify my rambling &/or make corrections. I think he's talking about 14.5" with a mid-lenght, but either way I'm pretty sure that any mid-lenth problems that did exist were gas port size problems. Just to be clear, there are no 'real' problems with car and 16". Just that technicaly, mid-length works with less pressure, and therefor exerts less force on the BCG. |
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Quoted:
Perhaps, but quality 14.5" Middy systems (CMMG, Sabre, Noveske) are fine.
Quoted:
I think he's talking about 14.5" with a mid-lenght, but either way I'm pretty sure that any mid-lenth problems that did exist were gas port size problems.Quoted:
Perhaps you're misremembering. It's the CAR gas system which isn't ideal with a 16" barrel because the distance from gas port to muzzle is too long. But any quality 16" CAR system is fine (for example, Colt 6920, LMT Defender, et al). It goes something like this:
At one point I think I read that you shouldnt get a midlength on a 16" due to the short distance between the gas port, and the end of the barrel. Which gives a shorter time for the gas to actuate the system. Im no expert, just something I remembered. CAR is ideal with 14.5" MID is ideal with 16" RIFLE is ideal with 20" Middy is said to be less harsh pressure / cycling / ejection and thus more reliable than the CAR, but you and I would never notice the difference. That said, there isn't any noticeable (to me) difference in recoil impulse between a quality CAR or Middy. The main difference would be sight picture / longer handguards of the Middy. Get whichever is available. Shoot. Enjoy. ETA: I'm sure someone will be along shortly to clarify my rambling &/or make corrections. Just to be clear, there are no 'real' problems with car and 16". Just that technicaly, mid-length works with less pressure, and therefor exerts less force on the BCG. Agreed.
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On a 16" barrel the car gas system also recoils noticeably more than the same rifle with mid gas.
(And before anyone jumps in with the OB, "But it's only a .223, it doesn't have any recoil." STFU until you know what you're talking about. When tenths count, recoil matters.  )
For the OP, order a middy, pop a frosty beverage, and wait for it to show up at your door. It may take a bit, but it will arrive. Much better than panic buying something then realizing it isn't what you really wanted. I can't think of a single to purchase a 16" car gas gun. Likewise the only reason I can think of to buy a 14.5" car gas gun is if you absolutely have to have an M4gery. Otherwise mid gas is the only way to go. Excepting of course for the 16" rifle gas systems, those are cool too. 
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get on the email list for this: BCM middy upper These are supposed to be ready late February. hope and pray that you are near a computer within one hour of the email being sent that they are in stock. ... or you can backorder a BCM middy upper from Denny @global tactical. |
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