Forums › Forums › Gun Parts › T3x magazine retention springT3x magazine retention spring Larkin updated 1 day, 3 hours ago 2Members · 2 Posts Gun Parts GriffMember January 15, 2021 at 9:09 pm 10 Bullseyes Need a magazine retention spring as my ctr did not come with one and I am using a standard bottom metal and magazines. LarkinModerator February 26, 2021 at 5:55 pm 216 Bullseyes Hi mountain tactical have started making these springs Log in to reply. PublicAll MembersMy ConnectionsOnly Me PublicAll MembersMy ConnectionsOnly Me Original Post 0 of 0 posts June 2018 Now