Uncle Mike's Magazine Cap with Swivel Base 1" - 20 Gauge Remington 870

The Uncle Mike's Magazine Cap with Swivel Base 1" – 20 Gauge Remington 870 is a purpose-built attachment solution designed for tactical shotgun operators, law enforcement personnel, and dedicated hunters who need reliable sling indexing without permanent firearm modification. This magazine cap assembly replaces your factory Remington 870 cap with an integrated 1-inch swivel base, enabling rapid sling deployment while maintaining full magazine tube functionality and shotgun cycling reliability.

Installation is straightforward and non-invasive: simply unscrew the original factory magazine cap and install the Uncle Mike's cap assembly in its place. The 1-inch swivel base accommodates standard two-point sling systems and allows 360-degree rotation, preventing sling twist during tactical movement or long carry periods. Engineered by Michaels of Oregon, a manufacturer with deep roots in law enforcement supply, this assembly is machined to tight tolerances and designed to withstand the repetitive stress cycles inherent to duty and training environments. The swivel mechanism operates independently of the cap, ensuring smooth attachment and detachment of sling hardware without compromising magazine seal integrity or gas-tube alignment.

This kit is ideal for Remington 870 pump-action and semi-automatic 20-gauge variants used in tactical training, home defense, or professional security work. The 1-inch swivel standard ensures compatibility with most two-point tactical slings on the market. Operators appreciate the reversible mounting geometry, which accommodates both left and right-hand carry without requiring additional hardware. No gunsmithing, permanent alteration, or specialized tools are needed—making this an accessible upgrade for shooters seeking professional-grade sling management on their 870 platform.