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binary trigger
A binary star is a star system consisting of two stars orbiting around their common barycenter. Systems of two or more stars are called multiple star systems. These systems, especially when more distant, often appear to the unaided eye as a single point of light, and are then revealed as multiple by other means. Research over the last two centuries suggests that half or more of visible stars are part of multiple star systems.
The term double star is often used synonymously with binary star; however, double star can also mean optical double star. Optical doubles are so called because the two stars appear close together in the sky as seen from the Earth; they are almost on the same line of sight. Nevertheless, their "doubleness" depends only on this optical effect; the stars themselves are distant from one another and share no physical connection. A double star can be revealed as optical by means of differences in their parallax measurements, proper motions, or radial velocities. Most known double stars have not been studied sufficiently closely to determine whether they are optical doubles or they are doubles physically bound through gravitation into a multiple star system.
Binary star systems are very important in astrophysics because calculations of their orbits allow the masses of their component stars to be directly determined, which in turn allows other stellar parameters, such as radius and density, to be indirectly estimated. This also determines an empirical mass-luminosity relationship (MLR) from which the masses of single stars can be estimated.
Binary stars are often detected optically, in which case they are called visual binaries. Many visual binaries have long orbital periods of several centuries or millennia and therefore have orbits which are uncertain or poorly known. They may also be detected by indirect techniques, such as spectroscopy (spectroscopic binaries) or astrometry (astrometric binaries). If a binary star happens to orbit in a plane along our line of sight, its components will eclipse and transit each other; these pairs are called eclipsing binaries, or, as they are detected by their changes in brightness during eclipses and transits, photometric binaries.
If components in binary star systems are close enough they can gravitationally distort their mutual outer stellar atmospheres. In some cases, these close binary systems can exchange mass, which may bring their evolution to stages that single stars cannot attain. Examples of binaries are Sirius, and Cygnus X-1 (Cygnus X-1 being a well-known black hole). Binary stars are also common as the nuclei of many planetary nebulae, and are the progenitors of both novae and type Ia supernovae.
I'm selling my fostech phantom premium light with fostech echo sport binary trigger installed(one shot for pull ,2nd shot on release).
It comes in sniper gray, and only weighs in at 5.6lbs making it the lightest ar on the market .all premium built with high quality parts from fostech. Chambered...
I am selling my H&K SP5 in 9mm. It is like new in box with only 30 rounds through it.
It has the Franklin armory binary trigger pack and it is a blast to shoot it feels like almost full auto speeds.
It also has the HK PDW brace that slides in and out like a traditional mp5 stock.
It has all...
I'm selling my fostech phantom premium light with fostech echo sport binary trigger installed(one shot for pull ,2nd shot on release).
It comes in sniper gray, and only weighs in at 5.6lbs making it the lightest ar on the market .all premium built with high quality parts from fostech. Chambered...
FYI for those of you thinking about buying the $269 Fostech echo sport trigger for the 15-22.
If you install as shown in the instructions it will not work because the 15-22 upper (or more specifically the bolt I guess) doesn’t push the trigger lock forward. It won’t fire unless the trigger...
For those of you who have been looking at binary triggers, the Fostech echo II is around $400 and franklin armory's is also expensive. Doubletap has one for around $200 but I have heard it has a heavy trigger pull (no personal experience).
The Fostech echo sport is a cheaper version that uses...
Aren't there a couple versions? I believe you have to list a price. A location wouldn't hurt either. Right version, right price, right place, I think we could make something work.
Sold
Now featuring a short clip of the lower in action
Here we have a Spike's Tactical "Honeybadger" lower receiver, complete with Spike's T2 heavy buffer, and Franklin Armory's BFS III binary trigger system. This thing cycles stupid fast, and the heavy buffer when paired with a lightweight BCG...
For Sale:
Franklin Armory Libertas Billet lower W/ BFSIII Binary trigger system and Mission First Tactical Minimalist Stock. I bought the completed lower from Franklin so they installed the trigger and buffer the stronger buffer spring. i put on the stock. This was a lot of fun, but I am...
BFSIII™ For CZ Scorpion
oh man....I have what I consider a great trigger in my AR and dont really want a binary for that platform.... but... this for the Scorpion....oh man... I wish they said what the Pull weight was... (i did do the lighter HB springs and HB flat trigger, but .... man, this...
I received my much anticipated trigger from Franklin Armory yesterday. This morning I installed it in to a dedicated SEF lower. Overall I'm impressed with the quality and finish of the trigger.
My only complaint so far is with the trigger pack adjustment screw. The screw is meant to...