Big Bore Calibers on the AR-15 Platform!

Love my 450 bushmaster omgggg

12.7×108 I don't think that's fitting in the AR-15

Good god BCA 12.7×108?!?! How about 12.7×42. And his shooting stance is horrid. Those guns don’t kick that hard. You’d think he was shooting a 300 Win Mag

12.7×42 beowolf, not 108mm, just sayin…

When you are too lazy to shoot twice

At 5$ a round no thanks

Wait 12.7 x 108? I have a feeling someone is gonna get fired

Your 12.7mm. upper was awesome! I just wish we could get some GOOD polymer mags for them.

What’s the big boar caliber with the square end

That was not 12.7x108mm

Maybe a 12.7x42mm

50BMG is 12.7x99mm and won't fit in an AR15 magazine.

I have one of your 450 bushmaster 16 inch. It'll rock ya….but it friggin rocks….

The shoulder destroyer

I own the bear creek .458 socom upper and man that rifle is a beast.

Definitely on my list

I ordered one. Still no shipping

When you want to destroy what you are aiming at.

mega typo! 12.7×108 ? doesnt look like a russian round to me!

12.7×108!