Get the perfect balance with External forend weights.  Designed for M-Lok chassis with configurations similar to the MPA Matrix.
 
FEATURES 
 
Black Nitride finish
Integral Flush cup
Shaped to be support hand friendly during push/pull/press positional shooting
Compatible with MPA internal weight kits on Matrix
Full kit (6 weights) includes 4 short weights and 2 long weights
Full kit adds just over 2.5 pounds (41 oz.)
Short Weights- 3.125" x 0.4" x 1.225" at 6 oz. each (Covers 2 M-Lok slots)
Long Weights- 4.7" x 0.4" x 1.225" at 9 oz. each (Covers 3 M-Lok slots)
 
 
Full Kit (4 Short weights and 2 Long weights)