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5.7 AR Upper that accepts P90 magazines...

Discussion in 'Rifle Discussion' started by CharlesAFerg, Dec 8, 2008.

  1. CharlesAFerg

    CharlesAFerg Beaverton Active Member

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  2. PhysicsGuy

    PhysicsGuy Corvallis, OR Resident Science Nut

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    Yeah Ive seen those. The downside is that it seems like kind of a waste, since the 5.7 round was developed to give equivalent penetration to .223 in a gun smaller than an M4, so its kind of a step backwards to start shooting 5.7 out of AR-15s. But I guess there has to be an upper in ever caliber.
     
  3. CharlesAFerg

    CharlesAFerg Beaverton Active Member

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    50 round magazines. Full auto ARs would benefit.
     
  4. PhysicsGuy

    PhysicsGuy Corvallis, OR Resident Science Nut

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    Yeah but you could get a PS90, admittedly it wouldn't be full auto, but 5.7 ammo costs far more than .223
     
  5. CharlesAFerg

    CharlesAFerg Beaverton Active Member

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    Oh heck yes, good luck finding the good stuff.
    I do not like the feel of the P90 at all, but I absolutely love the AUG.

    This is one of those rare cases in which I would prefer a regular .223 AR.
    Besides, this mod is just for fun.