Yes its another mismarked Elite just like the ones from Guns Unlimited that had my Original 45 NIB. Its Knights old DISC Elite SKU. It appears the new Knight basically just added a "M" to the new SKUs.

Some examples but not all
DE = Disc Extreme
DL = Disc Elite
D = DISC Original

First number is finish, second is caliber and third is length.
706 = .50 cal stainless
606 = .50 cal blued
756 = .45 cal stainless
656 = .45 cal blued

The last number is barrel length
6-26"
7=27"
ect

The last letter/s can mean several thing including style, material and pattern on the camo version. Im not 100% sure on the F. I would have to check my Original box but i only remember it having a C. Some may not apply to all models.
T = Thumbhole
C = Composite
F = Fluted

Examples:
DL756C = Disc Elite, .45 cal stainless, composite stock.
DE706CF = Disc Extreme, .50 cal stainless, composite stock, fluted.
DE756TC = Disc Extreme, .45 cal stainless, thumbhole composite stock. (which happens to be fluted since it is a .45 caliber)

This might help others looking at them on auction sights if the seller listed the SKU.