Colt European CR6920-EC AR15

[1168]

Forgot to mention….a CIP or Wylde chamber will fail that gauge.

[markm]

Forgot to mention….a CIP or Wylde chamber will fail that gauge.

I want the reamer to fix my one Wylde chamber AND run in my suspect chambers. And now that I see the guage, I'm going to need that too.

[the AR-15 Junkie]

I want the reamer to fix my one Wylde chamber AND run in my suspect chambers. And now that I see the guage, I'm going to need that too.

I have that reamer, works well in some barrels, one of the few tools of Neds I would buy.

Not reaming my Euro Colts, part of the charm of the rifle, for me.

[markm]

I have that reamer, works well in some barrels, one of the few tools of Neds I would buy.

Not reaming my Euro Colts, part of the charm of the rifle, for me.

I can appreciate that. Do you plan to shoot the Euro or keep as a collector?

[cosmo223]

So dumb rookie question. I just want to confirm that since these are .223 barrels, not 5.56 barrels, you shouldn't/can't use 5.56 ammo like XM193. Saw some mention that it's like a wylde chambering, so would 5.56 be ok?

Honestly, that's what's kept me from getting one, since I already have a ton of 5.56 ammo, multiple US AR's and don't want to FU, grab this rifle without thinking and start running 5.56 through it.

[O3SKILL]

So dumb rookie question. I just want to confirm that since these are .223 barrels, not 5.56 barrels, you shouldn't/can't use 5.56 ammo like XM193. Saw some mention that it's like a wylde chambering, so would 5.56 be ok?

Honestly, that's what's kept me from getting one, since I already have a ton of 5.56 ammo, multiple US AR's and don't want to FU, grab this rifle without thinking and start running 5.56 through it.

If the chamber specs are similar to wylde, then you should have no problems at all shooting 5.56 pressure ammo. I had high hopes when CZ purchased Colt, but so far everything they have put out is about as exciting as watching paint dry.

I hope things change in the future.

[markm]

So dumb rookie question. I just want to confirm that since these are .223 barrels, not 5.56 barrels, you shouldn't/can't use 5.56 ammo like XM193. Saw some mention that it's like a wylde chambering, so would 5.56 be ok?

Even if it was really a .223 chamber, it's not like the gun will blow up. You'd probably have diminished reliability with 5.56 (failure to extract, for example) and possibly popped primers.

I'd love to know for sure what the deal is, AND if the current run is chambered differently than the first 16" version. Mine definitely behaves like a 5.56 chamber. And I surely have some barrels that DO NOT behave.

[the AR-15 Junkie]

Bolt Closes on 1.4636, does NOT close on 1.4646.