None of these mounts are engraved HRT
SPUHR AIMPOINT T1, T2, H1 MOUNT
The worlds most rugged Aimpoint Micro/CompM5 mount.
Attaches to any Picatinny or STANAG NATO rail with the use of two Tx20. Features
Spuhr interfaces on the non-clamping side.
.866 is for picatinny rail applications, non AR based
1.18 is also for picatinny rail applications, non AR based
1.535 is Full Cowitness
1.653 is the lower 1/3rd cowitness