Rings & Bases

The mount is the only thing connecting your scope to your rifle — and a $50 mounting mistake can make a $1,500 scope shoot like a $50 one. Impact Guns carries scope rings, bases, one-piece cantilever mounts, and precision ring sets from Vortex, Leupold, Warne, Burris, and other proven makers.

Read our full Scope Rings & Bases Buying Guide ↓

Match Three Things: Tube, Height, Rail

Ring selection comes down to three measurements. Tube diameter must match your scope exactly — 1 inch, 30mm, or 34mm are the standards, and they are not interchangeable. Ring height must clear your objective bell (bigger objectives need taller rings) while keeping the scope as low as comfortable cheek weld allows. And the ring base must match your rail — Picatinny is today’s standard, Weaver is similar but not always cross-compatible, and many hunting rifles use proprietary bases or integral dovetails.

Two-Piece Rings vs. One-Piece Mounts

Traditional two-piece rings on separate bases are light and proven — the hunting rifle standard. One-piece mounts machine both rings into a single unit, guaranteeing alignment and adding rigidity; cantilever one-piece mounts push the scope forward for correct eye relief on AR-platform flat-tops, which is why they dominate that market. For ARs, buy a cantilever mount. For bolt guns, quality two-piece rings save weight; one-piece adds insurance on hard-recoiling magnums.

Quick-Detach Mounts

QD mounts (Warne, American Defense) lever off the rail in seconds and return to zero within an inch or so — useful for rifles that travel, scopes shared between guns, or backup iron sight access. The return-to-zero claim is real with quality QD mounts and verified at the range; budget QD levers are the place where cheap mounts fail. For a dedicated scope on a dedicated rifle, fixed mounts are simpler and remove a failure point.

Mounting It Right

Most “scope problems” are mounting problems. Torque ring caps and base screws to spec (typically 15–18 in-lbs caps, 25–30 in-lbs bases — a torque wrench pays for itself), level the reticle against a plumb line, set eye relief at full magnification before tightening, and apply blue threadlocker to base screws only. Lapping rings is rarely needed with modern machined mounts but cures stubborn alignment issues on older receivers.

Frequently Asked Questions

What height scope rings do I need?
Low enough that the objective bell clears the barrel by a paper’s width or two, no higher — lower mounting means better cheek weld and a more consistent zero. As a rough guide: 40mm objectives use low rings, 50mm use medium, 56mm use high. AR flat-tops are the exception: 1.5”-class centerline height (or higher) is correct for the platform’s straight stock.

Are Picatinny and Weaver mounts interchangeable?
Partially. Picatinny accessories generally fit Weaver rails only if the recoil lug width matches; Weaver accessories usually fit Picatinny rails. The slot spacing differs — Picatinny is the military standard with wider, evenly spaced slots. When buying new, choose Picatinny for maximum compatibility.

How tight should scope ring screws be?
To the manufacturer’s spec — typically 15–18 inch-pounds on ring caps. Overtightening crushes scope tubes and is among the most common ways shooters damage optics. An inch-pound torque driver is the cheapest insurance in shooting.