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The CJRK Quick-Release Riflescope Mount from Sightmark is an optical accessory used to attach a 30mm or 1" scope to an AR-style firearm's mounting rail. This mount provides return-to-zero capability of the optic, and it features two quick-release throw-levers integrated with an aluminum rail and two 6-hole scope rings. The 30mm scope rings will also accommodate 1" scopes thanks to the included reduction ring inserts. The CJRK mount is best-suited for scopes that have an eye relief less than 4"; its cantilever design allows proper eye relief and mounting height on various AR-style platforms.
Throw-lever quick-release for Picatinny or Weaver rail
Fits 30mm scope tube, or 1" with the reduction ring
Provides proper height and relief of AR-mounted scopes with eye relief less than 4"
Aluminum with matte black finish, 6-hole mounting ring with integrated rail
Mounting Ring / Rail Details
Centerline height: 1.5" (38 mm)
Distance between rings: 3" (76mm)
Ring-to-ring length: 6.9" (175mm)
Total length with rail: 7.8" (198mm)
Ring width: 1.8" (45mm)
Ring width with rail: 2.2" (55mm)
Ring height: 2.3" (58mm)
In the Box
Sightmark CJRK Quick-Release Riflescope Mount for 30mm and 1" Scope
Reduction Ring Insert
Lifetime Limited Warranty
Table of Contents
Main Tube Diameter
30 mm (1" with reduction ring)
1.5" (38 cm)
7.8 x 2.3 x 2.2" (20 x 6 x 5.5 cm)
8 oz (227 g)
Sightmark CJRK Quick-Release Riflescope Mount for 30mm and 1" Scope Review