Hilton Yam announced that APEX and 10-8 collaborated to make this base pad for M&P. 10-8 already has a base pad for Glock and customers were wondering if there was something for M&P.
It is sold as a set of 4, at $34.95
link: http://www.10-8performance.com/m-p-base-pad-apex-10-8-molded-set-of-4/
Blog post on MSW: http://modernserviceweapons.com/?p=12432
From: Modern Service Weapons