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Muzzle Boresights

Salvo Technologies’ boresight systems provide high-quality performance, reliability, flexibility, and value. A field-adjustable reticle allows for an unmatched accuracy range of ± .02 mils and immediate compensation for all environmental factors and worn gun tubes. The large objective provides high resolutions and superior light passage in the most undesirable overcast conditions. Magnifications of 8X, 10X, and 12X enhance capability and match most modern fire control systems. Nitrogen purged and sealed optical cells, aluminum and stainless steel construction, a mil specified and proven design provide years of trouble-free reliability and performance. The telescope interfaces with smaller caliber adapters (thru 40mm) via integral 5.56mm and 7.62mm stems, while large caliper designs include a permanent telescope interface. These adapters are mechanically perfect and inherently locate the exact mechanical centerline axis of even the most worn gun tubes. Salvo Technologies’ video boresight system (BCA) adds a new dimension to boresighting with a patented approach unrivaled by the competition.


Given our history in the boresight market dating before 1960, we possess a long portfolio of mechanical interface designs. We hold several design patents and can provide great insight into the required characteristics for maximum accuracy. Our list of options enhances basic designs, and in a sense, custom tailor for your special requirements. In some applications, we use semi-exotic materials in our adapters and stems for maximum accuracy. We are very proud of our heritage and position at the pinnacle of the industry, we would be honored to build a system for you.

Boresight Features & Characteristics

  • Built, designed, tested, and proven to meet performance and environmental standards per full MIL specifications (In production and used by the US and foreign armies); numerous NSNs.
  • Field Adjustable Reticle – azimuth and elevation.
  • All adapters inherently and positively (no wobble) locate the centerline of worn gun tubes.
  • Nitrogen purged and sealed.
  • Nighttime boresighting via (flashlight) illuminated reticle
  • No loose tools.
  • Superior resolution-optical performance with a suitable aperture for overcast conditions.
  • Rugged high-density polyethylene carrying cases with MIL-qualified hardware – impervious to DS2, super tropical bleach, and many other chemicals.
  • EPP foam case inserts (Not available in all cases)
  • Anti-Parallax below 200 meters via simple, standard black aperture stop lens cap.
  • Common telescopes for large & small caliber units.
  • Large Caliber: Single piece telescope/adapter, 10X & 12X telescopes, torque indication plate, non-rotating collet. 70mm through 155mm available.
  • Small Caliber: Integral 5.56mm or 7.62mm stem with telescope, instant and positive interchangeability of 12.7mm – 40mm adapters to the tapered stem.
  • Available in any size from 5.56mm through 40mm+.
  • Optional close focus (down to 2 meters) mechanisms
  • Optional graduated torque plates – large caliber adapters.

Telescope Features & Characteristics

Salvo Technologies offers three telescopes categorized by magnification 8X, 10X, and 12X. Each telescope is designed to satisfy a specific purpose or application. The 8X is our lowest-weight telescope, best suited for guns below 14.5mm; the relatively light weight of the 8X reduces/eliminates the possibility of system droop in smaller gun tube sizes. The 10X is specifically designed for use on large cal adapters primarily to match the magnification of the related platform. Finally, the 12X provides the highest accuracy, but its larger size is best suited for gun tubes above 20mm. All three telescopes surpass all competitive units in terms of accuracy, resolution, and light passage.

Magnification FOV (Degrees) Diopter Aperture Accuracy Accuracy (1000 Meters) Weight
8X 5.63 ± 4.0 6.63 ±.0325 Mils ± 3.25 cm 257 Grams
10X 4.5 ± 4.0 5.3 ±.0250 Mils ± 2.50 cm 310 Grams
12X 3.75 ± 4.0 6.36 ±.02 Mils ± 2.0 cm 339 Grams

Our specialists will review your system, including the gun size and muzzle break dimensions, and then make suggestions based on this information.

Over the years, we have designed and manufactured stems and adapters for every conceivable application. Exotic materials used in special stems and adapters design include carbon fiber and sintered carbide. In addition, our long portfolio of custom systems and extensive design experience ensures quick processing and competitive pricing.

When performing the collimation (or boresighting) process, the highest degree of accuracy is obtained when targeting at as long a distance as possible (typically 1500 meters). However, in some cases, this is not possible or practical. Therefore, we offer a permanent and detachable close focus feature in the 12X and a detachable part (only) in the 8X and 10X telescopes.

Video Assisted Boresighting is a relatively new term in the industry and is best applied to particular applications. A video boresight system provides increased efficiency, safety, and the ability to collimate difficult-to-access gun tubes. The Boresight Camera may be used on any Salvo Boresight Telescope, the Boresight Camera is provided in standard and special video formats, and the imagery is sent to and received by our Control Box with LCD or to the customer’s LCD.

Our new Reticle Illuminator Kit Part # BS-FLH will ease the task of illuminating the Salvo proprietary reticle. The new Reticle Illuminator Accessory affixes to the telescope, making its use 100% hands-free. The illuminator uses 4 each LR41 batteries for 8 hours of run time. The standard light color is white; however, blue, green, or red light is an available option.

NOTE: The light will illuminate reticle lines only and not the entire reticle.

Description Graflex Part # Included Items NSN
50 Cal Sight Alignment Tool Kit 8-1000 NA
8-1001 8X Telescope 1240-01-563-7476
1-1006 50 Cal Adapter 4933-21-257-8503
2-1003ISR Carry Case w/Inserts NA
50 Cal Sight Alignment Tool Kit 2-1000
1-1001BR 12X Telescope 1240-01-442-2670
1-1006 50 Cal Adapter 4933-21-257-8503
2-1003 Carry Case w/Inserts 1240-66-143-4009
50 Cal Kit in Ammo Case (8X or 12X) 2-1050BR 1240-01-499-7958
OR { 1-1001NF 12X Telescope No Fingers NA
8-1001 8X Telescope 1240-01-563-7476
1-S006 50 Cal Adapter NA
CC-1050 Carry Case w/Inserts NA
20mm Sight Alignment Tool Kit 1-1210 12X Telescope
1-1001BR 1240-01-442-2670
1-1020 20mm Adapter NA
1-1003 Carry Case w/Inserts 1240-01-441-5411
25mm Sight Alignment Tool Kit 1-1000 6680-01-449-0887
1-1001BR 12X Telescope 1240-01-442-2670
1-1002 25mm Adapter 1244-01-441-5410
1-1003 Carry Case w/Inserts 1240-01-441-5411
30mm Sight Alignment Tool Kit 3-1000 6625-01-551-6437
1-1001BR 12X Telescope 1240-01-442-2670
1-1007 30mm Adapter 1005-01-534-2669
1-1003 Carry Case w/Inserts 1240-01-441-5411
40mm Sight Alignment Tool Kit 4-1000
1-1001BR 12X Telescope 1240-01-442-2670
1-1009 40mm Adapter 4931-01-573-4107
1-1003 Carry Case w/Inserts 1240-01-653-2560
40mm/50 Cal Sight Alignment Tool Kit 4-1250BR 1240-01-512-4531
1-1001BR 12X Telescope 1240-01-442-2670
1-1006 50 Cal Adapter 4933-21-257-8503
1-1009 40mm Adapter 4931-01-573-4107
1-1003 Carry Case w/Inserts 1240-01-441-5411
40mm/50Cal/5.56mm Sight Alignment Tool Kit  8-4556 6650-01-563-6732
8-1001 8X Telescope 1240-01-563-7476
1-1006 50 Cal Adapter 4933-21-257-8503
1-1556 5.56mm Adapter NA
1-1009 40mm Adapter 4931-01-573-4107
 3-4556 Carry Case w/Inserts NA
105mm M26A3 Muzzle Boresight Kit M26A3 4933-01-504-6262
50D1438FH1 105mm MBD NA
129568803 Carry Case w/Inserts 1265-01-439-8621
120mm M27A3 Muzzle Boresight Kit M27A3 4933-010504-6263
50D1438FH2 120mm MBD NA
129568803 Carry Case w/Inserts 1265-01-439-8621
125mm Muzzle Boresight Kit 1-1125 NA
50D1485FH1 125mm MBD NA
129568803 Carry Case w/Inserts 1265-01-439-8621
125mm Muzzle Boresight Kit 1-UNILG 105/120/125mm MBD NA
129568803 Carry Case w/Inserts 1265-01-439-8621
155mm Muzzle Boresight Kit 1-1155 NA
50D1155FH1 155mm MBD NA
12956810 Carry Case w/Inserts NA
1. All Medium & Small Cal Kits Include 1-1004 Warning Flag (8345-01-441-6459) & 1-1005 Drift key (1240-01-441-5412).
2. All Large Cal Kits include 1-1004 Warning Flag (8345-01-441-6459).
3. Graflex will Upgrade all A1 & A2 Large Cal MBDs to A3 Configuration.
4. 50 Cal Adapter (1-1006) Also Assigned NSN 1005-66-142-8569
NOTE: Graflex has designed, part-numbered, and manufactured hundreds of adapters outside of those listed above.