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Barrett ExRings With Dual Setting of 20-30 MOA 30mm 1.6" High

Barrett ExRings With Dual Setting of 20-30 MOA 30mm 1.6" High

BARRETT 30MM EX RINGS 15/40 Dual MOA
ITEM #: BAR-66850-A-KIT
More Items From: Barrett Firearms
DETAILS SPECIFICATIONS

 Barrett ExRings With Dual Setting of 15-40 MOA 30mm 1.6 Inches High

ACCURACY AT ANY DISTANCE.

Long-range shooters often encounter a common problem: some scope/rifle combinations don’t offer enough “up” elevation adjustment in their scopes to allow the shooter to hit targets at the maximum range of their rifle systems.

Barrett ExRings with Pin-Lock® technology, however, make this issue a thing of the past.

With dual-MOA settings (15 MOA or 40 MOA), ExRings allow maximum use of the riflescope’s precise internal elevation adjustment by aligning the scope for long-range shooting. The front ring is designed with a precision-fit pivot feature that elevates the rear of the scope while eliminating any other unwanted movement. The rear ring houses the Barrett Pin-Lock technology that allows the user to select from two MOA settings by simply changing the location of a single pin. Once an MOA setting is selected and the ring’s four cross bolts are torqued to specification, Barrett ExRings become a rock solid mount with the perfect angle.

 

Barrett ExRings with Pin-Lock™ technology has a dual setting MOA taper at 15 MOA or 40 MOA, utilizing the riflescope’s precise internal elevation adjustment by aligning the scope for long-range shooting. The front ring assembly is designed with a precision fit pivot that allows the scope to elevate in the rear, but tolerances ensure no unwanted movement. The rear ring assembly houses the Barrett Pin-Lock technology that allows the user to select from two MOA settings. Once an MOA setting is selected and the ring’s four cross bolts are torqued to specification, Barrett ExRings become a rock-solid mount with the correct taper to maximize the potential of your rifle system.

hen selecting a mounting solution for your optics, strength and weight are two important considerations. The greater the overall weight of your complete optics system, the greater inertia (the tendency of a body to resist acceleration) it will have. When a gun is fired, it recoils with instant acceleration. A heavy optics system mounted above the bore axis will resist the sudden rearward movement. A light-weight, strong mount is the best way to combat unwanted sight movement during recoil.

Barrett ExRings are constructed of high-strength 7075 T-6 aluminum. This material is ideal for the application due to its impressive strength; even more impressive strength-to-weight ratio when compared to heavier steels.

  BARRETT 7075 ALUMINUM OTHERS 1018 STEEL RESULTS
TENSILE STRENGTH 83 KSI 64 KSI 25% STRONGER
TENSILE STRENGTH YIELD 73 KSI 54 KSI 25% STRONGER
WEIGHT 8.32 OZ 11.5 OZ 25% LIGHTER

HOLDING AREA

Barrett ExRings are wider than typical rings at 1.2 inches. This creates a greater surface area of contact between the ring and scope maintube. The benefit is a secure grip on the optic that will hold up under heavy recoil. Along with this solid connection comes protection for your expensive scope. The broad clamping area spreads out the forces and reduces the likelihood of denting or distorting the scope tube. The same benefits in scope holding translate directly to the mount’s ability to hold on the rail. More width in rail clamping area is better.

  BARRETT OTHER GUYS RESULTS
SURFACE GRIPPING AREA 8.192 INCH² 4.08 INCH² TWICE THE EFFECTIVE GRIPPING AREA
WIDTH OF RING 1.2 INCH .625 INCH TWICE THE EFFECTIVE GRIPPING AREA

HEAVY DUTY HARDWARE

The rail clamping cross bolt and nut are precision machined from hardened steel alloys. The cross bolt is securely pressed into the scope ring base, and the end of the bolt is staked to retain the nut. The cross bolt is designed with a broad shoulder to perfectly interface with cross slots of mil spec 1913 rail to resist even the harshest recoil. The top cap of each ring is retained by four robust Torx screws placed with broad spacing to provide consistent and evenly distributed clamping force.

PRECISION AND TOLERANCE

All critical features on Barrett ExRings are machined with great care. The 30-mm bore will be exactly that with a diameter tolerance of plus or minus .001", perfect roundness and position in relation to the mounting rail. Angles and surfaces in the rail clamping feature of the lower ring are held to great positional tolerances to ensure the scope is held centered when bolted up to the rail.

FIT AND FINISH

Every component of Barrett ExRings is carefully handled all the way to packaging. All edges are beautifully rounded to prevent snags and resist corner wear. The 7075 T-6 components are hard anodize coated in black to mil spec MIL-A-8625 Type III Class 2 specification for superior surface hardness (60 Rockwell) and resistance to wear. Steel components are manganese phosphate coated to mil spec DOD-P-16232 Type M Class 2 specification.

 

 

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