PDW Compact Carbine Buffer

A: If you have a Maxim CQB stock it's a drop in. If you have a Strikes Industries VIPER PDW you would need our Strikes Industries PDW KIt which includes the buffer tube which is required to use our PDW buffer.

A: No it will not you must have our kit for this setup. In the product page description, it states: Our patented Compact H2 Buffer is for use ONLY with Black Rifle Arms Enhanced Buffer, Spring & Buffer Tube Assembly Kit for Strikes Ind. Viper PDW Stock and Braces. If one has our kit for this stock then you can buy individual buffer weights for fine-tuning.