Hello, Can anybody tell me what the mounting options are to use the TA-11D or TA-31A on a Colt flattop? Also what you think the best mount is? Thanks

You have four mounts availble. TA51, ARMS #19ACOG or ARMS #19S.

TA51 uses two thumb screws and is *a little* lower than the ARMS #19 units. The ARMS #10 is much like the TA51 mount.

ARMS #19ACOG has two throw levers and is somewhat long. ARMS #19S is the same as the #19ACOG but it is half the length and uses one throw lever.

All three mounts are very durable. The throw levers on the ARMS units are very convieniennt. Most folks preffer the #19S mount.