Checkmate's Sig Sasuer P226 magazine is engineered for duty-grade reliability ad consistent performance in demanding environments. A purpose-built P2226 follower incorporates a reinforced, anti-tilt design with a self-lubricating, low-friction finish to keep cartridges properly indexed throuout the entire firing cycle. Checkmate's proprietary high-performance spring delivers uniform feed pressure, excellent fatigue resistance, and long service life. Built to perform under hard use, this magazine ensures reliable feeding, positive slide operation, and confidence on every round.Removable High-Impact Polymer+10% Power SpringsLow Drag Polymer FollowerLifetime Warranty