4 – 10-24 x 1/2 Bolts
1 – 1/4 – 20 x 1 3/4 Bolt
1 – 1/4 – 20 x1 1/2 Bolt
1 – 3/8″ Drill Bit
1 – 7/16″ Drill Bit
1 – 1/8″ Drill Bit
responsible for compliance with local state and federal regulations regarding
any products sold on our website.
You Must Legally be allowed
to possess a firearm
80% Lowers are subject to all the same laws
that apply to regular lower receivers. If you live in CA, you need to be
careful to follow the laws related to the Assault Weapons Ban. In general, if
you build AR-15 style rifle with a pistol grip, you will need a "bullet
button". There are configurations that do not require a bullet button. For
more info on following CA Laws, Calguns.net has a very helpful flowchart: www.calguns.net/caawid
Tips: I like to drill
the trigger pin and safety holes after I finish drilling or milling the
magazine well and safety pocket. This
leaves very little material to drill though to deflect the drill bit off
center. When using the open slot end of the Trigger Hole Plate to extend the Safety pocket to the Rear Take Down Pin Pocket only Drill or Mill to a depth of 9/16". If you 80% lower does not have
the rear take down pin already machined.
Just extend the safety pocket (but only 9/16” deep) out using the 7/16”
drill bit until you are 1/8” from the buffer retaining pin hole and stop. Instructions for this operation included.
For receivers that
are not anodized, one product that you can use is Brownells Aluma-Hyde II for
your finish. We found this product to be surprisingly tough and easy to use. The only drawback is the curing time, 14
days. Brownells website has instruction
videos on using Aluma-Hyde and other like Cerakote.