Accessory

    Accessory Compatibility and Recommendation Guide: ADV ARMS CONV KIT FOR LE20-21 W/BAG

    Product Compatibility Overview

    The ADV ARMS CONV KIT FOR LE20-21 W/BAG is a .22 LR conversion kit designed specifically for the Glock 20 and Glock 21 platforms. This kit allows users to convert their standard Glock 10mm or .45 ACP pistols to fire .22 LR, providing a cost-effective training and plinking solution. The kit typically includes a replacement slide, barrel, recoil spring assembly, and dedicated magazines. It utilizes the Glock frame, so accessory compatibility is largely dictated by the host Glock model (Gen 3/4/5, depending on kit version).

    Mounting Systems & Compatibility Standards:

    • Utilizes Glock’s standard accessory rail (Picatinny/Universal) for lights and lasers.
    • Slide may feature a standard Glock dovetail for iron sights; optic cuts (MOS) depend on kit version.
    • Magazine compatibility is exclusive to the conversion kit’s .22 LR magazines.

    Essential Accessories

    • Spare Magazines: Additional .22 LR magazines for extended range sessions.
    • Magazine Loader: Eases loading of small .22 LR rounds, reducing thumb fatigue.
    • Chamber Flags/Snap Caps: For safe dry fire and function checks.
    • Trigger Guard Lock: Enhances safety during storage and transport.

    Optics and Sighting Systems

    • Iron Sights: Most kits accept standard Glock-compatible sights. Recommended: Trijicon Bright & Tough Night Sights for low-light use.
    • Red Dot Sights: If the kit is optic-ready (MOS cut), consider the Trijicon RMR Type 2 or Holosun 507C X2 for fast target acquisition. Confirm slide cut compatibility before purchase.
    • Budget Option: AmeriGlo Glock Sights offer reliable performance at a lower cost.

    Tactical Enhancements

    • Weapon Lights: The Glock rail accommodates most compact lights. Recommended: Streamlight TLR-7A (compact, reliable) or SureFire X300U (professional-grade, higher output).
    • Laser Attachments: Crimson Trace Rail Master is a universal fit and offers quick activation.
    • Grips/Ergonomics: Consider Talon Grips or Hogue HandALL grip sleeves for improved control, especially with training volume.

    Performance Upgrades

    • Triggers: Aftermarket triggers (e.g., Glock OEM Minus Connector) can be installed in the host frame for a lighter pull. Note: Some triggers may not interact identically with the conversion kit.
    • Barrels: The kit’s barrel is proprietary; no aftermarket options.
    • Internal Components: Upgrades to the host Glock’s internals (springs, pins) may improve reliability but consult manufacturer guidance for .22 LR compatibility.
    • Professional Installation: Recommended for trigger upgrades or if fitting issues arise.

    Holsters and Carry Gear

    • Holsters: Use holsters designed for the Glock 20/21, as the conversion kit maintains the external dimensions. Recommended: Safariland ALS 6378 (OWB, retention), Blackhawk Serpa CQC (budget-friendly), and Alien Gear Cloak Tuck 3.5 (IWB, concealed carry).
    • Magazine Pouches: Ensure compatibility with .22 LR conversion magazines (may require universal or adjustable pouches).
    • Concealed Carry: Not recommended for defensive use, but suitable for discreet range transport.

    Maintenance and Storage Accessories

    • Cleaning Kits: .22 LR kits require frequent cleaning. Recommended: Otis .22 Pistol Cleaning Kit or Hoppe’s BoreSnake for field use.
    • Lubricants: Use a high-quality gun oil suitable for rimfire systems.
    • Storage: Secure storage in a lockable case or gun safe. Consider a Vaultek LifePod for portable security.

    Budget Considerations and Value Analysis

    • Essential Accessories: Spare magazines, cleaning kit, and a basic holster.
    • Optional Upgrades: Optics, weapon lights, and premium sights.
    • Best Value: Streamlight TLR-7A (light), AmeriGlo Sights (iron sights), and universal magazine loaders offer strong performance without premium pricing.
    • Premium Tier: Trijicon RMR Type 2 (optic), SureFire X300U (light), and Safariland ALS (holster).

    Installation and Compatibility Guide

    • DIY Installation: Most accessories (lights, sights, grips) are user-installable with basic tools.
    • Professional Installation: Recommended for trigger upgrades or if fitting issues arise with sights.
    • Common Issues: Ensure sight dovetail compatibility; some aftermarket triggers may not reset reliably with .22 LR kits. Always test function after installation.

    Brand Recommendations and Reviews

    • Top-Rated Manufacturers: Trijicon, Holosun, Streamlight, SureFire, Safariland, AmeriGlo, Talon Grips.
    • User Feedback: These brands are consistently praised for reliability, durability, and customer support in both professional and civilian use.
    • Professional Assessments: Industry reviews highlight the value of dedicated .22 LR training kits for reducing ammunition costs and improving fundamentals.

    Legal and Safety Considerations

    • Regulations: Accessories such as lights, lasers, and optics are generally unrestricted, but always verify local/state laws regarding magazine capacity and storage requirements.
    • Safety: Use chamber flags during transport and storage. Always follow safe handling practices, especially with rimfire systems prone to light strikes or misfires.

    Sources