On top of the FOPA machine gun restrictions, any NFA weapon imported into the US after the Gun Control Act took effect (end of 1968) cannot be transferred to an individual. See 26 USC sec. 5844. They can be transferred to SOT’s, without any police demonstration request, and kept by the SOT after surrendering his SOT. These are sometimes called “pre-86 samples”, or “dealer samples”, although dealer sample can be used to refer to either a post-86 machine gun or any NFA weapon imported after 1968.
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OTech Holographic Sights feature a heads up design that allows both eyes to be open in order to maintain peripheral vision and depth perception while shooting. The reticle is a 65 MOA open circle with a 1 MOA aiming dot in the center, providing fast target acquisition and precise aiming options. This model 552 AA is 5" in overall length and runs for 1100 hours on a set of AA batteries. It also features a toggle switch that immediately lowers the light intensity for use with night vision without any halo effect. Includes an integral Weaver-style mount and 2-year factory warranty. Technical Information Optics: Transmission holography ? 100% parallax free Magnification: 1x unlimited eye relief Length/Width/Height: 4" x 1.8" x 2.25" (102 x 49 x 60 mm), ‘AA’ model: 5" x 1.8" x 2.25" (131 x 49 x 60mm) Weight: 11.5oz Color/Finish: Non-reflective black with hard coat finish Adjustment: (per click): 0.5" at 100 yards Adjustment Range: +/- 40 MOA travel Mount: 1" Weaver dovetail/Picatinny rail (Mil spec 1913) Optical Surfaces: Anti-glare and scratch resistant coatings Window Dimensions: 1.20" x 0.85" (30 x 23 mm) Window Material: Shatterproof laminate (3/16" thick) Field of view (100 yards): 30 yards (28m) at a 4" eye relief Standard Reticle: 65MOA ring with quadrant ticks with a 1MOA Aiming dot ElectricalPower Source: Universally available AA batteries (supports lithium, alkaline or rechargeable) batteries are included Battery Life: AA batteries: 600 hours, AA Lithium: 1100 hours Brightness Settings: 20 settings with scrolling feature Notes: # Auto Battery Check Indicator: Flashing reticle upon startup if batteries are at 20% of battery life. # Auto Shutdown: At 8 hours ? programmable to 4 hours # Revision F Electronics # Rubberized Input Button