CMMG Sight Base Assembly, Fits Barrels with .750" Diameter Gas Journals Approximately 2" Long, Front 55DA338

CMMG Front Sight Base Assembly — Fits .750" Gas Journal Barrels (Approx. 2" Long) — 55DA338 (UPC 815835012773) Give your rifle a rock-solid aiming solution with the CMMG Front Sight Base Assembly, engineered for barrels featuring a .750" diameter gas journal (approximately 2 inches long). Whether you’re restoring a classic front sight/gas block profile, building a rugged patrol-style carbine, or wanting dependable co-witness with backup iron sights, this CMMG assembly (Model 55DA338, UPC 815835012773) delivers the durability, alignment, and clean look that shooters expect from a premium component. Why Choose the CMMG Front Sight Base Assembly Correct .750" gas journal fit for broad compatibility with popular AR-15 profile barrels. Approximately 2" long journal coverage supports secure, stable installation and alignment. Front sight + gas block integration provides a time-tested, low-maintenance aiming system. Durable steel construction built to handle heat, recoil, and round-after-round reliability. OEM-grade geometry for consistent sight height over bore and repeatable zero. CMMG quality trusted by armorers, agencies, and serious enthusiasts. Purpose-Built Performance The front sight base remains a favorite for shooters who value mechanical simplicity and always-on reliability. With the gas system and front sight integrated, you get a tough, streamlined unit that resists harsh field conditions and keeps your rifle running. This assembly is designed to deliver a true front sight reference at standard height, enabling absolute or lower-1/3 co-witnessing with the right optic setup and rear sight. Ideal Use Cases Duty and defensive builds where rugged iron sights are mandatory. Retro/clone projects seeking the classic fixed front sight look and feel. Hunting and field rifles that demand dependable aiming in tough weather. Training rifles where iron-sight fundamentals matter. Compatibility Guidance Barrels: AR-15 pattern barrels with a .750" diameter gas journal, approximately 2" long. Platforms: Standard AR-15 uppers configured for compatible gas systems. Sights/Optics: Works with most A2-style rear sights and typical red dots for co-witness. Note: Barrel journal length and diameter must match. If your barrel uses a different gas journal size or length, select the corresponding front sight base or gas block solution. Installation & Setup (High-Level) Verify your barrel’s .750" journal diameter and ~2" length before installation. Ensure proper gas port alignment and secure attachment per professional standards. After assembly, confirm zero at your preferred distance and verify repeatability. For best results and safety, installation should be performed by a qualified armorer or gunsmith following industry-accepted practices. Durable Construction, Clean Aesthetics Built from robust steel, this front sight base takes abuse without losing zero. Its clean, classic profile offers snag-resistant functionality while maintaining a standard sight height suited to a wide range of rear irons and optics. The result is a work-ready solution that looks right and runs right. Technical Details Product: Front Sight Base Assembly Position: Front Model / SKU: 55DA338 UPC: 815835012773 Barrel Fit: .750" diameter gas journal, approx. 2" long Material: Steel Use Case: Integrated front sight & gas block style assembly SEO Quick Hits (For Easy Scanning) CMMG front sight base assembly for .750" barrels Fits gas journals approximately 2 inches long Integrated front sight/gas block steel construction AR-15 fixed front sight base, Model 55DA338 UPC 815835012773, co-witness capable The Bottom Line For shooters who value reliability, simplicity, and proven sighting, the CMMG Front Sight Base Assembly is an outstanding choice. With a .750" gas journal fit and ~2" length compatibility, it’s a durable, straightforward upgrade or replacement that keeps your rifle on target—season after season. The End