TacFire Dust Cover — AR-10 • Black Steel • 3.31" — MAR093308 • UPC: 811261024014
Keep your AR-10 receiver clean, protected, and professional-looking with the TacFire Dust Cover (Model MAR093308). Designed for reliable fit and low-profile protection, this 3.31" black steel ejection port cover shields the bolt/carrier group from debris, dust, and moisture when the rifle is closed — helping preserve function and extend service life. Built for builders, armorers, and shooters who demand straightforward, rugged parts, the TacFire dust cover is an essential small part that makes a big difference in long-term reliability.
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Product Overview
The TacFire MAR093308 dust cover is a dedicated ejection port cover for AR-10 pattern rifles. Constructed from black steel and sized at 3.31", it provides a durable barrier against environmental contaminants when the rifle is not in use or when operating in dusty, wet, or sandy conditions. Designed to blend with tactical and field finishes, the cover offers a low-glare black appearance and a solid feel when closed.
Key Features & Benefits
Purpose-Built for AR-10: Sized to fit AR-10 pattern ejection ports — ideal as a replacement part or upgrade during maintenance and builds.
Heavy-Duty Black Steel Construction: Solid steel construction improves durability and resists deformation from handling and repeated use. The black finish reduces reflections and complements common receiver finishes.
3.31" Length: Measured at 3.31" to match common AR-10 port dimensions—verify against your receiver spec to ensure correct fit.
Low-Profile Design: Sits flush when closed to preserve a clean receiver line and prevent snagging on gear or clothing.
Simple, Reliable Function: Spring-loaded closure and hinge interface are engineered for repeated cycling with positive engagement.
Direct Replacement SKU: MAR093308, UPC 811261024014 — easy to order and stock for armorers and builders.
Compatibility & Fit Notes
Platform Compatibility: Engineered for AR-10 pattern rifles. AR-10 family receivers vary by manufacturer (Armalite-style, DPMS-pattern, LR-308 pattern, etc.), so confirm receiver ejection port dimensions before purchase.
Before You Buy: Compare the 3.31" length and hinge/shaft interface with your existing dust cover to ensure proper fit. If replacing an existing cover, remove and compare part-to-part where possible.
Works With: Most AR-10 uppers that match standard AR-10 ejection port dimensions. Compatibility may require checking the hinge pin diameter or style on some receivers.
Practical Advantages
Protects Critical Internals: Keeps dirt, grit, and moisture out of the bolt and carrier group when the action is closed — reducing abrasive wear and the need for frequent cleaning in harsh environments.
Maintains Appearance: The black finish conceals wear and blends with common black or dark-tone receivers for an OEM look.
Field-Ready Reliability: A robust steel cover resists bending or damage during transport and handling compared to lighter, thin stamped options.
Installation & Maintenance (High-Level)
Installation: Typically mounts on the receiver using the standard dust cover hinge and shaft. For most repairs or replacements, a basic armorer’s toolset suffices; however, ensure proper alignment and secure retention of the hinge pin.
Inspection: Periodically check the hinge, spring tension, and cover seating for signs of wear or looseness. Replace if the hinge binds, the spring weakens, or the cover fails to seal the port cleanly.
Care: Wipe surfaces with a soft cloth after use; lubricate hinge shaft lightly during regular maintenance to prevent corrosion and ensure smooth operation. Avoid abrasive cleaners that may remove finish.
Who Should Buy This
Rifle builders finishing an AR-10 upper or performing a parts refresh.
Armorers and gunsmiths stocking replacement ejection port components.
Hunters, competitive shooters, and tactical users who operate in dusty or adverse environments and want dependable receiver protection.
Anyone needing a rugged, black steel replacement dust cover identified by SKU MAR093308 and UPC 811261024014.
Safety & Legal Notes
No Functional Changes: This is a cosmetic/protective replacement part and does not alter the firearm’s firing mechanism or classification. Always follow all federal, state, and local firearms laws when purchasing and installing parts.
Professional Assistance: If you are unsure about fitment or installation, consult a qualified gunsmith. Improper installation (eg. loose hinge pin) can lead to lost parts or malfunction.
Technical Specifications (High-Level)
Model / SKU: MAR093308
UPC: 811261024014
Type: Ejection port / dust cover for AR-10 pattern rifles
Material: Steel (black finish)
Length: 3.31" (measured across the cover)
Finish: Matte black (low-glare)
Intended Use: Replacement or upgrade dust cover for AR-10 uppers
Buying Tips & Final Considerations
Double-check your receiver’s dust cover mounting style and ejection port dimensions to ensure the 3.31" TacFire cover is a correct match.
Keep the original dust cover hinge and spring if you plan to swap covers; compare hinge pin diameter and hole spacing before final installation.
For a matched aesthetic, source other TacFire AR-10 parts or finish-matched components to keep a consistent look across your build.
Summary
Small, inexpensive, and often overlooked — a reliable dust cover like the TacFire MAR093308 plays an outsized role in protecting your AR-10’s internal components from the elements. Made of durable black steel and sized at 3.31", this TacFire ejection port cover is a practical replacement or upgrade for anyone finishing a rifle build, performing routine maintenance, or preparing gear for rugged field conditions.
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