Part 4 looked at various details of the M110 SASS including the attachment of the sound suppressor, iron and optical sights, night vision optic, and the RAS sleeve. Part 5 concludes our detailed look at the M110 SASS.
Above: The Leopold optical sight of the M110 comes equipped with Butler Creek pop-open lens covers on both the occular and objective ends. The occular end (closest to the shooter's eye is operated by a red lever to release the cover; the front is released by flipping a projecting tab molded to the cover. The honeycomb device screwed into the objective end of the optical sight is called Kill-Flash. It is designed to prevent any kind of reflection off the optical glass that might give away the sniper's position. Light can enter the lens, but it cannot be reflected back to another observer. (Photo: KAC)
Below: Close-up of the left side of the Leopold optical sight, its rings, and the attachment to the receiver of the rifle. The scope mount is designed so that the optical sight can be removed from the receiver without loss of zero. The prominent knob on the left side scope below the top elevation knob is used to adjust parallax. Parallax is a fancy term that means focusing the optics to the shooter's eye at a given range. (Photo: KAC)
Above: The M110 SASS opens for bolt removal in an identical way to the M16/M4 series of 5.56 NATO caliber rifles. The exception is that the parts are much larger to accomodate the 7.62 NATO cartridge. The M110 rifle does not uses the forward assist feature found on the 5.56 NATO caliber rifles. The M110 bolt assembly operates the same way as its smaller caliber brothers. All of the controls on the lower receiver operate the same way as those found on the smaller caliber rifles except that the M110 is not capable of full automatic fire. (Photo: KAC)
Below: The component parts of the bolt assembly are identical to the M16/M4 series rifles, except for size. Top to bottom, left to right: bolt cam pin, extractor pin, bolt (with gas rings), extractor and pin, and firing pin. (Photo: KAC)
Above: The right side of the lower reciever is identical to that of the M16/M4 series of 5.56 NATO rifles except for its size to accomodate the larger 7.62 NATO cartridge. The M110 uses the same captive push pin arrangement on the front and rear as the smaller caliber rifles to secure the two halves together. Like the M16/M4 series rifles, the lower part of the trigger guard hinges down to allow firing of the rifle with gloved hands in cold weather. The front pin is also called the pivot pin. (Photo: KAC)
Below: The rear end of the lower receiver showing the captive push pin (takedown pin) and the ambidexterous safety selector. There are only two safety selector positions -- safe and fire -- and they are engraved on on both right and left sides of the receiver. Note the beefed up area around the rear takedown pin to strengthen the receiver halves for the increased recoil of the 7.62 NATO cartridge. (Photo: KAC)
Above: The butt plate of the M110 is adjustable for lenth of pull. The sniper can extend the butt plate out by loosening the nut on the right side of the stock. When he finds the correct length of pull to suit him, he then locks the extension in position and does not move it. Note the pivoting stud below the wrench for the quick attach/detach sling swivel. (Photo: KAC)
Below: The butt plate of the M110 extended to its minimum position after adjustment. (Photo: KAC)
Above: The adjustable for pull butt plate at its maximum position. Length of pull appears to have increased by approximately 2-1/2 inches. (Photo: KAC)
Below: The slip-on rubber butt pad protects the ebutt plate and also acts as a recoil pad for the sniper. It has a pad that can be added to adjust length of pull also. The rubber pad helps keep the stock from moving about on the sniper's shoulder. (Photo: KAC)
This concludes our detailed look at the M110 SASS. I don't know about our readers, but I am really impressed by the thought, engineering, and quality built into this rifle. I also don't want to even guess how much it cost because this kind of quality comes with a hefty price tag. Ah, we can always dream that Santa will bring us one for Christmas, along with a case of 7.62 M118LR Special Ball ammunition.
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