Trijicon Accessory Ring Cap — 30 mm, Q-LOC® Footprint Mount, Matte Black Aluminum (AC22078 | UPC 719307619173)

Add mission-ready mounting real estate to your scope without cluttering your rail. The Trijicon Accessory Ring Cap replaces the top half of a 30 mm scope ring and integrates a Q-LOC® footprint accessory mount—perfect for compact red dots, dope card holders, laser rangefinders/adapters, or micro topside accessories. Precision-machined from matte black aluminum, the AC22078 delivers Trijicon’s hallmark durability with clean looks and reliable, repeatable alignment.

Why This Ring Cap Makes Sense

• Space-saving integration: Put mission-critical accessories on the scope, not the handguard—ideal for short rails, night rigs, and minimalist LPVO builds.

• Q-LOC® footprint mount: Built-in Q-LOC interface offers a secure platform for compatible Trijicon accessories and mounts with fast on/off capability.

• Rigid aluminum construction: CNC-machined aluminum maintains ring integrity and optic alignment while keeping weight to a minimum.

• Matte black finish: Low-glare anodizing resists wear and corrosion and blends seamlessly with modern mounts and receivers.

• Clean cable management: Placing devices up top can reduce pressure-switch cable runs and snag points versus handguard mounting.

Key Specifications

• Brand/Model: Trijicon Accessory Ring Cap

• Tube Size: 30 mm (replaces the top half of a 30 mm scope ring)

• Interface: Q-LOC® footprint accessory mount

• Material: Aluminum

• Finish/Color: Matte black

• Part Number: AC22078

• UPC: 719307619173

• Compatibility: 30 mm scope/ring systems; Q-LOC compatible accessories (verify your mount/footprint)

• Use Cases: LPVO builds, duty carbines, predator/night setups, PRS/NRL crossover rifles, patrol rifles, training carbines

Fit Note: This cap is designed for 30 mm rings only. Confirm your scope tube diameter and that your base ring screws and spacing are compatible with the Trijicon cap.

Performance Advantages You’ll Notice

• Better head-up transitions: Mounting a micro-dot or accessory at 12 o’clock enables instant offsetless transitions without coming off the glass.

• Reliable zero retention: A rigid cap helps preserve ring clamping force and scope alignment for consistent POI through recoil and transport.

• Balanced weight placement: Accessory mass sits near the scope’s centerline for steadier handling versus outboard rail mounts.

• Streamlined setup: Free up M-LOK/1913 slots for other gear; reduce clutter and snag hazards on barricades and slings.

Ideal Applications

• LPVO + micro-dot combos for carbine competition and patrol rifles.

• Night hunting where a topside accessory or micro illuminator is easier to access.

• Precision gas guns needing a dope card or compact device within eye line.

• Short-rail builds where handguard space is limited by suppressors or thermal bridges.

Installation & Setup (Quick Guide)

1. Verify the firearm is unloaded. Remove mag and clear chamber.

2. Remove the existing ring cap on your 30 mm mount; note torque values.

3. Seat the Trijicon ring cap evenly over the scope tube; align the Q-LOC interface at your preferred position.

4. Torque ring screws in an alternating X-pattern to the mount manufacturer’s spec (use non-permanent thread locker as recommended).

5. Attach your accessory to the Q-LOC footprint; set lever/screw tension per the accessory’s instructions.

6. Confirm zero & repeatability: After range work, remove and remount the accessory to verify return-to-zero.

Pro Tip: Witness-mark ring screws and the Q-LOC fasteners. Recheck after travel, temperature swings, or high round counts.

Care & Maintenance

• Wipe with a soft cloth; avoid abrasive cleaners.

• Periodically confirm ring torque and Q-LOC tension.

• Keep contact surfaces free of oil and debris for maximum clamping consistency.

SEO Highlights (For Shoppers & Merchandisers)

• Primary Keywords: Trijicon Accessory Ring Cap 30 mm, Q-LOC footprint mount, AC22078, matte black aluminum, UPC 719307619173.

• Related Keywords: Trijicon Q-LOC scope ring cap, 30mm ring cap with mount, LPVO accessory cap, top-mount red dot ring cap.

• Value Propositions: Integrates a Q-LOC accessory mount into a 30 mm ring cap, preserves rail space, lightweight aluminum rigidity, matte black durability, easy install with repeatable alignment.

What’s in the Box

• Trijicon Accessory Ring Cap — 30 mm, Q-LOC Footprint, Matte Black (AC22078)

• Mounting hardware/documentation (as provided by Trijicon)

Safety Reminder: Always follow firearm safety rules and torque specifications from both your scope mount and accessory manufacturers.

Simplify your build and keep critical accessories within reach. The Trijicon Accessory Ring Cap (30 mm, Q-LOC) adds secure, low-profile mounting where you need it most—right on your optic.

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