1514 Winchester Ave Martinsburg, WV 25405


Green Monstah Firearms offers FFL Transfers and Gunsmithing on top of retail parts specializing in Semi AR, shotguns, rifles and handguns.


A firearm is transferred when an FFL sells it to a customer or hands it over to another FFL for a client to pick up.

Usually, in order to sell a firearm across state borders, an FFL dealer is required. The buyer then picks up the handgun from the in-state licensed dealer after the firearm is transported there.

In the same way, if a consumer purchases a gun from you online, you must ship the weapon to an FFL dealer in their state so that the customer can pick it up.


The regular upkeep, repair, and customization of firearms is known as gunsmithing. Gunsmiths recognize old or broken parts and swap them out for new ones.

In order to fix problems that are unique to particular models and manufacturers, they must be aware of those issues. Sometimes, gunsmiths modify firearms for competitive or other purposes specified by their clients.

More than a store, we represent a hub geared to help and grow our community.

We are a pet and family friendly place, where experts and newcomers alike may pursue their passion in the most supportive environment.

We love lending a hand for local events and charity work.

We are West Virginia's #1 Aero Precision dealer.

We have all the parts you need to buiGM Contactld the perfect rifle


Located at 1514 Winchester Ave, Martinsburg, WV 25405, we're conveniently situated to serve you.

Whether you're dropping by for expert advice, browsing our selection, or attending one of our community events, we look forward to welcoming you to our store. Explore the map to plan your visit, and don't hesitate to reach out if you need any assistance finding us. We can't wait to see you!

1514 Winchester Ave, Martinsburg, WV 25405, USA

We are more than happy to serve you! Please email us if you have any queries about the products, site, or anything else.

We’re open: Monday-Saturday 10:00 – 19:00, Sunday 10:00 – 16:00

For additional questions, you can call us at (304) 816-4811 or find us on YELP.

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Monday – Saturday 10am-7pm

Sunday 10am-4pm