CFNA: 70 Coupons (Discontinued)
The M4A1-S Crystal is a variant of M4A1 Silencer and it is claimed to be more accurate than the original M4 carbine. It does not have a scope, unlike its evolved version (Custom-Crystal), though it is reported that it has more power, and is also more accurate because of the low recoil. It has a blue, crystal-like appearance and is favored by many.
- CF Vietnam
- CF Korea
- CF North America