To date I've added a bunch of upgrades and accessories to my very recently purchased M&P15T:
* Condor Tactical 36" rifle bag
* Magpul 20 & 30 rd. magazines
* Magpul CTR stock
* Magpul XTM rail covers
* Ergo ladder type rail protectors
* Hogue ergonomic grip
* CAA BVG vertical grip
* Troy Industries low profile QD front sling mount
* Blackhawk V-TAC two point w/QD swivels
* Harris lightweight swivel bipod & GG&G rail mount adapter
* Streamlight PolyTac tactical light and offset rail mount
* Primary Arms M4 red dot sight & rail mount
* Primary Arms 1-4X illuminated scope & rail mount
* #7 O-rinng around upper receiver hinge post to tighten upper / lower fit
* GI type cleaning kit
* Laser bore sight
I ordered a few new upgrades this weekend:
* KNS .034 round ultra fine front siight post
* Spike's Tactical ST-T2 heavy buffer
* BCM / VLTOR Gunfighter Mod 4 charging handle
* Tango Down PR-4 buffer tube mounted QD sling mount
* Magpul aluminum Enhanced Trigger Guard
The Standard AR front sight post is sufficient for battle use but provides a less than ideal sight picture. I find I'm getting on target more quickly and reacquiring targets more quickly with this new front post. Long range accuracy with with BUIS has improved as well. $6 improvement - sweet!
The Spike's buffer is filled with high density tungsten powder rather than sliding weights. Aside from quieter operation users have noted smoother cycling and less felt recoil. At $30 it seemed like a no brainer.
The Gunfighter charging handle wasn't a must-have but reliable one handed operation without having to move off target seemed like a worthwhile upgrade. The latch has been enlarged and reinforced and the charging handle is stronger as well.
I wanted to add a QD sling mount near the back of the receiver where the buffer tube castle nut is located. The Tango Down by all reports is rock solid, lightweight, and provides, left, right, & back QD sockets.
I had always intended to install a Magpul enhanced trigger guard - just hadn't gotten around to it until today. Works as intended providing trigger access to a gloved shooting hand. Looks good too!
The only thing left to mess with is the trigger. I've corresponded with Bill Springfield about purchasing a worked 4# trigger group from him and I may do this down the road a ways. The stock trigger in my M&P, while heavier, is so good (no creep, crisp and consistent break) that I've no desire to mess with it - even for a lighter trigger.
I need to stop buying parts and start buying target ammo.
It's perhaps a little over the top for a target / plinking gun but it's definitely enjoyable to shoot! Here are some new pics: