The Primary Arms PLx 30mm Cantilever Scope Mount 2.04 in Height, Clear Anodized is a one-piece cantilever mount that fixes a 30 mm tube rifle scope to an M1913 Picatinny rail at a 2.04 in (52 mm) optical centerline. It is machined from 7075 aluminum with nickel-coated grade 12.9 steel hardware, uses a three-bolt ring design with dual recoil lugs and three cross-bolt lugs, and generates over 6,500 lb (2,950 kg) of clamping force.
The 2.04 in height is the reason to pick this one over the standard mount. Raising the optical centerline lets the shooter hold their head up rather than crushing their cheek into the stock, which is faster into the shoulder and far more comfortable over a long day. It also opens up the space in front of the objective for a night-vision device or magnifier to sit in line. The clear anodized finish is a raw-aluminum look rather than black.
How It Compares
This is the tall PLx mount. For a conventional cheek weld and a lower sight line, the PLx 30 mm cantilever mount at 1.5 in height in black is the standard-height version. For the same 1.5 in height at a lower price, see the Primary Arms SLx 30 mm cantilever mount, and for 34 mm tube scopes the Primary Arms SLx 34 mm cantilever mount. It fits the 30 mm tube of the PLxC 1-8x24 FFP with the ACSS Raptor 5.56/.308 Yard G2 reticle and the SLx 1-6x24 Gen IV with the ACSS Nova reticle. Browse all rifle scope mounts.
Ideal For
- Heads-up shooting positions where a low mount forces an uncomfortable cheek weld
- Night-vision-friendly builds needing clearance in front of the objective
- AR-platform rifles with a taller comb or a plate carrier in use
- Any 30 mm tube LPVO on an M1913 Picatinny rail
Key Features
- Ring size: 30 mm, for scopes with a 30 mm main tube
- Height: 2.04 in (52 mm) optical centerline, raising the sight line for a heads-up position
- Construction: One-piece 7075 aluminum body with nickel-coated grade 12.9 steel hardware
- Retention: Three-bolt ring design, dual recoil lugs and three cross-bolt lugs
- Clamping force: Over 6,500 lb (2,950 kg)
- Rail: M1913 Picatinny
- Torque: Ring screws 16–18 in-lb (1.8–2.0 Nm), base screws 30–35 in-lb (3.4–4.0 Nm)
- Finish: Clear anodized
What's Included
- Primary Arms PLx 30 mm cantilever scope mount, 2.04 in height
Technical Specifications
Product Type | One-piece cantilever rifle scope mount |
Ring Diameter | 30 mm |
Height | 2.04 in (52 mm) optical centerline |
Rail | M1913 Picatinny |
Material | 7075 aluminum body, nickel-coated grade 12.9 steel hardware |
Retention | Three-bolt rings, dual recoil lugs, three cross-bolt lugs |
Clamping Force | Over 6,500 lb (2,950 kg) |
Ring Torque | 16–18 in-lb (1.8–2.0 Nm) |
Base Torque | 30–35 in-lb (3.4–4.0 Nm) |
Finish | Clear anodized |
US Shipping & Support
Shipped from D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
What size scope tube does this Primary Arms PLx mount fit?
This mount has 30 mm rings, so it fits rifle scopes with a 30 mm main tube. Scopes with a 34 mm tube need the 34 mm version instead.
What does 2.04 in height mean on a scope mount?
The 2.04 in figure is the optical centerline height, measured from the top of the Picatinny rail to the center of the scope tube, which raises the sight line above the conventional 1.5 in for a more upright, heads-up shooting position.
Why would I want a taller scope mount?
A taller mount lets you keep your head more upright behind the rifle, which is quicker to get into and more comfortable over a long day, and it leaves room for a night-vision device or magnifier to sit in line with the optic.
What rail does this mount attach to?
The Primary Arms PLx cantilever mount attaches to an M1913 Picatinny rail, using three cross-bolt lugs and dual recoil lugs to resist movement under recoil.
What torque should I use when fitting this mount?
Primary Arms specifies 16 to 18 inch-pounds, which is 1.8 to 2.0 newton meters, for the ring screws, and 30 to 35 inch-pounds, which is 3.4 to 4.0 newton meters, for the base screws.
What is clear anodizing?
Clear anodizing is a protective anodized finish without added color pigment, so the mount keeps the natural silver-gray appearance of the aluminum rather than being black.
