Not a question, but a comment to any potential buyers as it's worth noting, not all hope is lost. 
My Grach (V3 version) is now significantly more reliable by replacing the OEM flute valve with the Poseidon Ice Pick flute valve. You need the RED version which is designed to function better in colder weather.
Coupled with red gas, I can get through a full magazine without a vent. Used mine yesterday at around 5-6° for example.
It won't be perfect but it does make the Raptor offering actually usable.
My Grach (V3 version) is now significantly more reliable by replacing the OEM flute valve with the Poseidon Ice Pick flute valve. You need the RED version which is designed to function better in colder weather.
Coupled with red gas, I can get through a full magazine without a vent. Used mine yesterday at around 5-6° for example.
It won't be perfect but it does make the Raptor offering actually usable.