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Posted: 1/16/2006 4:10:04 PM EDT
[Last Edit: 1/16/2006 4:10:46 PM EDT by Saryan]
Hey if you built a MRP in .223 could you just change out the barrels and shoot .300 Whisper through it? Also what kind of mag does a 300 whisper take?
Link Posted: 1/17/2006 9:05:40 AM EDT
I suppose it's possible with an MRP, I have an MGI QCB upper and it works well. Doesn't the MRP use special barrel extensions? Interesting thought.

Whisper uses standard 5.56 magazines, runs great with standard springs and green followers. Runs perfect with MagPul followers.

Check out the FAQ in the variants board.

Tom
Link Posted: 1/17/2006 3:27:23 PM EDT
You would have to buy an LMT MRP barrel , remove the extension, throw the old barrel in the trash and use the extension on a custom built barrel. That combined with the cost of 300 Whisper ammo means you must be one wealthy dude.
Link Posted: 1/17/2006 3:54:41 PM EDT
Thanks. I dont know all that much about the MRP's. I was hoping it would work.
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