Welcome to GMAC Custom Parts Ltd...


We are closing for a summer holiday please note that this means we will closed from the 16th June (last shipping day) until the 27th June orders can still be placed and emails will still be answered but orders placed during that time will not be dispatched until the 27th June.


Please note that we do not man the phones but do answer when we can as we are a workshop and sometimes unable to leave machines. As we do not have an answer machine please email us with your contact details and we will get back to you.


We are a family run business with the personal touch manufacturing and supplying custom made parts for the crosman 22xx & 13xx range Marauder BP2220 Crosman 1720T Silhouette 1701P the qb/xs78 range and the webley fx2000 and it's derivatives.

Most of our parts are made in brass a traditional material used by gun makers for centurys, don't expect anything on this site made by GMAC to be made in  Delrin, the whole idea is to replace the plastic parts All Crosman spare parts listed are genuine not  GREY IMPORTS  Based in the UK but welcome orders from overseas all stock items posted within 24 hours of payment on business days.