Ambi mag release, true. Also the tactical bolt catch. What is really needed is reduced cost for these types of upgrades. Between those 2 upgrades, that has increased the cost of my rifle by $180. Then the forend kit puts me at $1100. Many people would just move to an AR if they were going to spend that. Don't get me wrong, I own both but the CZ/VZ's appeal is that it shoots a large, cheap cartridge and is less expensive than an AR. Also, affordable optic mounting options. BTW, I just spent $500 at Zahal, you guys are great!!