Generally most m4-style guns have interchangeable magazines with other models and brands. Check your specific model to see what it can accept.
6: 146, 164, 416, 461, 614, and 641.
seven which are 146 164 416 461 614 641
The positive integer factors of 614 are: 1, 2, 307, 614
4x-614 = -610
614-50 = 564
1, 2, 307, 614
614
614 is an integer, not a fraction.
614 + 14 = 628
358
1614
0.0049