boricua9mm
Member
I just received this sight this week and I wanted to show guys the differences between these two models. The original Fastfire (let's call it Fastfire I) has been out for a few years and has gained ground as a quality mini red dot sight. It has been found suitable for many applications; centerfire pistol, rimfire pistol, carbine or rifle primary red dot sight, and as a backup or close quarters sight for scoped rifles. Protector mounts are available from both Burris and Larue.
The Fastfire I is a projection style 4MOA red dot that is said to withstand up to 1000 G's of recoil force. It is "virtually parallax free from 10-150 yards" although I have used this sight with success at up to 200 yards by centering the dot in the lens. I haven't shot at any further distances with this optic. It has an on/off swicth as well as a light sensor element which automatically adjusts the brightness of the dot. The manual states that a battery service life of 4 years can be expected (CR2032 Lithium).
The new Fastfire II is touted as being the only completely waterproof mini red dot sight in its class. There are some key differences that make this possible. First, the Fastfire I had an open, exposed circuit. On the top side of the optic, coated wires are visible and the light emitting diode is visible as well. The CR2032 battery mounts sandwiched between the optic and the (included) picatinny mount. These two area make the Fastfire I too exposed for water resistance, let alone "waterproofing."
The Fastfire II addresses these areas of exposure, allowing for a completely sealed optic. On the top side of the Fastfire II, the previously exposed wires and LED are protected by a clear window manufactured of some kind of plastic material. I don't want to say that it's Lucite, but it looks to be very tough.The Fastfire II uses a rubber gasket plate between the bottom of the optic (& battery) and the mount. This forms rubber seal on the underside of the optic that is water-tight. I will also add that the dot on the Fastfire II appears to be much more defined & crisp than the Fastfire I.
Enjoy,
Erik @ RHP
The Fastfire I is a projection style 4MOA red dot that is said to withstand up to 1000 G's of recoil force. It is "virtually parallax free from 10-150 yards" although I have used this sight with success at up to 200 yards by centering the dot in the lens. I haven't shot at any further distances with this optic. It has an on/off swicth as well as a light sensor element which automatically adjusts the brightness of the dot. The manual states that a battery service life of 4 years can be expected (CR2032 Lithium).
The new Fastfire II is touted as being the only completely waterproof mini red dot sight in its class. There are some key differences that make this possible. First, the Fastfire I had an open, exposed circuit. On the top side of the optic, coated wires are visible and the light emitting diode is visible as well. The CR2032 battery mounts sandwiched between the optic and the (included) picatinny mount. These two area make the Fastfire I too exposed for water resistance, let alone "waterproofing."
The Fastfire II addresses these areas of exposure, allowing for a completely sealed optic. On the top side of the Fastfire II, the previously exposed wires and LED are protected by a clear window manufactured of some kind of plastic material. I don't want to say that it's Lucite, but it looks to be very tough.The Fastfire II uses a rubber gasket plate between the bottom of the optic (& battery) and the mount. This forms rubber seal on the underside of the optic that is water-tight. I will also add that the dot on the Fastfire II appears to be much more defined & crisp than the Fastfire I.
Enjoy,
Erik @ RHP
