I am considering adding the following upgrades to a Canik (Tristar) C 100. All the parts are from Cajun Gunworks. 61100 Firing Pin Retaining Pin 1 × $5.00 SPGK1 3 Piece Spring Kit 1 × $17.00 46 Front Sight Retaining Pin 1 × $1.00 30600 Canik Floating Trigger Pin 1 × $13.00 I am wondering if any non-professional gunsmiths out there have ever made these modifications. Do any of you have thoughts about Do-It-Yourself modifications? Are there potential legal issues associated with caring a gun that was enhanced by someone who is not a certified gunsmith? Thanks for sharing your wisdom.