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For all calibers – Gen 1 or Gen 2 – Marauder rifles

 

Direct replacement o-rings for the fill adapter housing, gauge port, and valve assembly.

Buna-N A70  Black. 

Works with the buffer mod too.

 

*Click on the following link to add silicone to your order:  https://hillairgun.com/products/hill-100-silicone-fluid/

 

 

 

Package includes:  5- o-rings, paypal fees, and shipping within the USA

Price: $5.98