Drop-in, one-piece mag well and mainspring housing makes the mag well opening 100% bigger for easier magazine insertion and faster, “can’t-miss” mag changes. Increases grip length by ¼" for additional leverage and greater recoil control. For a no-slip, no-shift grip, mainspring housing features extra-defined, 20 lpi checkering, unless otherwise noted. Smooth models have uncheckered mainspring housing. Grooved model has full-length vertical grooves on the mainspring housing.

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