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There are two different day optical sights available for the M200 Intervention. The standard optical sight is the Nightforce NXS 5.5-22x56 variable magnification telescopic sight with a 56 mm objective. The alternative optical sight is the US Optics SN-9.
Nightforce Optics, Inc. is an American manufacturer of high-end telescopic sights, spotting scopes and mounting accessories, based in Lavonia, Georgia with factory headquarters in Orofino, Idaho. Established in 1992, the company is the optic subsidiary of Lightforce Performance Lighting , an Australian manufacturer of specialty lighting ...
The SPR/A and SPR/B both used the KAC M4 Match FF RAS, KAC part number 99167. Two ARMS #22 Throwlever 30 mm steel rings are used to mount the dayscope. The SPR/A, SPR/B, and Mk 12 MOD 1 use ARMS #22 high rings, while due to the increased height from the SWAN Sleeve, the SPR and Mk 12 MOD 0/H use ARMS #22 medium rings.
In Canadian service, the standard telescopic sight was the McMillan endorsed Leupold Mark 4 16x40mm LR/T M1 Riflescope optical sight that has since been replaced by the Schmidt & Bender 5-25×56 PMII telescopic sight. [citation needed] McMillan also endorses the Nightforce NXS 8-32x56 Mil-dot telescopic sight for the TAC-50.
A Zeiss rail system typically adds height to the scope body, but also gives the possibility for a slimmer scope mount so that the total scope height can become comparable to a traditional ring mount. The added scope body height due to the rail piece on the scope itself contributes about 5.5 mm (0.22 in) to the total height.
The 6.5mm Grendel is an intermediate cartridge jointly designed by British-American armorer Bill Alexander, competitive shooter Arne Brennan (of Houston, Texas) and Lapua ballistician Janne Pohjoispää, as a low-recoil, high-precision rifle cartridge specifically for the AR-15 platform at medium/long range (200–800 yard).