Saw a thread about doing a trigger job on a 22/45 so I thought I'd post my experience with these... First mod should be a MKIII hammer bushing like this one: https://www.tandemkross.com/Steel-Ruger-Mark-III-2245-Magazine-Disconnect-Bushing_p_9.html (use code RFQUALITY for 1.99 off) Also check out the Tandemkross Plus1 magazine bumpers that they offer here: https://www.tandemkross.com/2245-Plus1-Magazine-Bumpers_p_12.html Completely awesome. Second, a Volquartsen sear found here with free shipping: Rimfire Sports & Custom: Volquartsen Ruger Mark II / III & 22/45 Target Sear No need to buy the whole Volquartsen kit if you have a 22/45 you guys. Its a waste of money. This is why: Do those two things and you'll have a 2lb trigger pull that is just out of this world. Add a VQ trigger for pre and over travel screw settings if you want and you're good to go. Edit: Tandemkross has produced more neat parts for our 22/45's. All of them can be found here: http://www.tandemkross.com/Ruger-Mark-III-2245_c_12.html I really like their mag pouches, Kanewolf Slingshot mod, and compensator.