I love the Spikes Enhanced, includes the awesome Ergo grip, their NiB trigger (great trigger) and the anti-walk pins (look good, peace of mind as round counts rise). Ships with an ambi safety, which is good even if you aren't southpaw because either A.) someone else is shooting your gun or B.) you need to do a weak-side transition. The other little tidbit I really like is the larger trigger guard. Great feature for shooting with gloves.