The Display ESF configuration includes every feature of my original Display receivers. Ultimax stands for вЂњthe ultimate maximization possible of Thompson gun features that can be incorporated in an unrestricted semi-finished non-gun receiverвЂќ. ESF receivers are available in two configurations. I have, therefore, decided to reconfigure my line of receivers by discontinuing my original Shop and Display receivers and offering the ESF receivers.Д®SF stands for вЂњEnhanced Semi-FinishedвЂќ. The second is one I have never built although I offered lock ramps and bevels as an option. And, QUALITY, QUALITY, QUALITY!!! The first configuration describes my Display receiver. The second is a receiver as just described but with as many additional machined original gun features as possible so that the receiver can be finished into a working gun with the least amount of machine work possible. Also, the receiver should not require any additional machine work to assemble the вЂњgunвЂќ. Where it is not possible to fit gun parts, the receiver must be able to accept display parts that will make the вЂњgunвЂќ appear to be complete. It should accept as many of the original gun parts as possible. The first is a receiver that appears from all outward respects to be a working original gun receiver. I have learned from buyers of my receivers that there are essentially two configurations of receivers wanted. The quality of these receivers exceeds the originals made by Colt, Savage or the real Auto-Ordnance Corp. To assure the most accurately made receivers, centerline coordinate machining is used with one set-up for all four sides, edge radii and interior in order to eliminate tolerance and error cumulations caused by changing set-ups and reference lines. Computer controlled machining enables edge radii to completely follow the front end contours and to properly radius the 1921/1928 drum slots, bolt handle slot and magazine cavity edges. The bars are machined on fully automatic, computer controlled machining centers. The steel is also stress relieved to prevent twisting during machining. My Thompson receivers are made from steel bars having the same alloy (SAE 1141) and are heat treated to yield the same tensile strength and hardness used in the original guns. What I make are real gun quality receivers that are not quite finished. Nor do I use the term вЂњdummyвЂќ which is usually used to refer to some cheap chunk of metal or plastic that simply provides a base on which to a attach a few gun parts and was never intended to be completed into a working gun. I do not use the term вЂњ80%вЂќ because it has no legal meaning nor does it accurately reflect the percentage of completion. What began with Arthur Savage back in 1894, continues stronger than ever today.For several years I have been offering my вЂњDisplayвЂќ and вЂњShopвЂќ semi-finished receivers. Whether you use them for recreational or competitive shooting, self-defense or hunting, every inch of our products is designed to give you an edge. ThatвЂ™s why holding a Savage in your hands is knowing what winning feels like. TheyвЂ™re purposebuilt firearms that come out of the box bristling with special features you wonвЂ™t find from other manufacturers. The results could not be clearer: Modern firearms stripped of pretense and gimmickry, leaving only muscular, no-nonsense engines of performance. That collaboration, that hands-on experience, has fueled the development of features and processes unlike any ever seen in gun manufacturing. And throughout the years, weвЂ™ve spent time listening to the best competitive shooters, sharing campfires with hunters and guides, and comparing notes with gun writers. We know what makes or breaks a firearmвЂ™s performance out there in the real world. We're constantly looking ahead, finding new ways to leverage technology to push performance ever higher.Д«ut weвЂ™re not just a bunch of lab geeks, either. All of our category-changing innovations have come from just such a place of principle. Our companyвЂ™s founders didn't mess around, and their spirit of American, get-it done ingenuity has always been Savage ArmsвЂ™ driving force.

Thompson smg receiver machining