Brownells STI 2011 Auto Extended Magazine Well Filler

The Brownells STI 2011 Auto Extended Magazine Well Filler is a drop-in funnel-style filler designed to smooth and extend the magazine well of STI 2011-platform pistols. It aids faster, more reliable magazine insertions by providing a flared entry point. Compatible with STI 2011 double-stack frames, this part is a practical upgrade for competition and duty shooters looking to improve their reload speed and consistency.