CMMG H2 Buffer Assembly H2 for AR15 M4 Carbine

CMMG H2 Buffer Assembly H2 for AR15 M4 Carbine - CMMG55CA92C
AR15 M4 Buffer H2, MEDIUM HEAVY, 5.2oz (For M4 rifle)
Buffer H2 for AR15 M4 Carbine

Color of Buffer may be different.

Buffer Assembly, H2

CMMG® AR15 H2 Buffer Assembly has one steel and two tungsten weights for additional mass than the H buffer. Heavier buffers can be used to reduce felt recoil and improve erratic case ejection. It is recommended when tuning a rifle to step up buffer weights incrementally as too heavy of a buffer can affect function.

H2 Buffer weight: 4.6 oz

There are several different Buffers out there.
Here is the nomenclature:

Buffer H0 for AR15 M4 rifle (Std buffer) (3,0 oz = 85 gram) CMMG55CA977
Buffer H1 for AR15 M4 rifle (3,8 oz = 107 gram) CMMG55CA97B
Buffer H2 for AR15 M4 rifle (4,6 oz = 130 gram) CMMG55CA92C
Buffer H3 for AR15 M4 rifle (5,2 oz = 147 gram) CMMG55CA9FD
Buffer 9MM version AR15 Heavy Bolt (5,36 oz = 152 gram) CMMG90CA9B4
Buffer 10mm AUTO CMMG M4 rifle (8,0 oz = 227 gram) CMMG10CA976
Buffer AR10 .308 Carbine Buffer (Short Std Version) CMMG38CA929  
Please note that weight may vary from different suppliers.