Wednesday, August 23, 2017


SIG officially anounced MCX Rattler. When its buttstocki s folded, it is 16 inches long and the name came about when the test firing designer said it rattles teeth when it is fired in full-auto.

It comes in 5.56 and .300BLK version. With the barrel length of 5.5 inches, 5.56 version can't use suppressors but .300 BLK can.

Soldier Systems Daily has a nice post about this gun.

Barrel is not compatible with any other MCX upper. But SIG is coming up with Rattler Upper Receiver Kits adapter for AR lowers.


SBR version:
PSB version:

Price is $2719 and above.

From: SIG SAUER via Soldier Systems