Shim Set Instructional Video: We have uploaded our new instructional video that shows step by step how to use our Bison Armory barrel nut shim sets to get correct torque and alignment of your AR-15 barrel nut every time. Check it out below and purchase shim sets in our web store here.
Important policy news: Please also be aware that our system charges your card when you place your order, not when your order has shipped. If this is a problem please do not order! Also note that our lead times are typically 2-4 weeks for components and 4-8 weeks for assemblies. Please DO NOT ORDER if this is a problem!
Communication policy: Bison Armory is a relatively small shop. As such our time is limited and answering phone calls detracts from getting orders out the door.
As such, communication via phone will be very limited for the next few months while we get caught up on orders. To contact us about product information or existing orders, please use email via firstname.lastname@example.org. We will do our best to answer your emails within 24 hours.
NEW ACCESSORY: Shim sets are here to help you properly align your barrel nut within the correct torque specs!
NOTICE: The number of orders we receive in a day has stabilized. For now. The recent and prolonged industry-wide surge in sales has, however, left some of our suppliers scrambling. As a result, we are currently backordered on many key components - particularly bolt carriers. We will make every effort to process your order as fast as we can, with priority given to customers based on their purchase date. Please keep in mind that our store pages do not accurately reflect the current availability of all the items we sell. Also, our capacity to handle telephone and email communication is starting to improve, although most of our efforts are still focused on building, packing and shipping your orders. We appreciate your patience, and look forward to completing your orders.
Thanks for choosing Bison Armory.