Action Body: 36 oz
Bolt Only: 15 oz
Body, bolt, rail, recoil lug, and trigger pins​: 55.4 oz

Receiver Material: 416R Stainless Steel
Receiver Length: 10.25”
Receiver Diameter: 1.60". Action screw spacing is 8.365". Front screw to rear recoil lug: 1.555".
Headspace: 1.100” +/- .001”
Tenon Threads: 1.1875-16 TPI UN-3B. Threads are made with a single point boring bar and indexed to top center of action. This allows any barrel ever fitted to a Stiller Action to be screwed onto any other Stiller Action without need for re-headspacing or re-indexing.

Bolt Design: One piece fluted on top and sides but not the bottom so that flutes will not interfere with magazine lips. TAC 1.45 and 1.60 actions have straight bolt handle. Bolt knob is threaded and comes equipped with a large knob with 5/16 x 24 thread.. Aftermarket knobs can be swapped out by user or gunsmith.
Bolt Diameter: 0.747"
Bolt Stop: On side of receiver opposite bolt handle above the stock line
Bolt Throw: 90 degrees
Bolt Material: 4140
Bolt Coating: Black Nitride
Firing Pin: Fluted Stainless Steel, .068" diameter tip
Extractor/Ejector: Modified M16 type extractor, Rem 700 style pin ejector
Recoil Lug: 416R Stainless parallel sided or tapered. .187” (Rem700 standard) or .300” produced in house and surface ground to .0002” tolerance.