Rangemaster .50 Rifle

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RPA Rangemaster .50 Tactical Rifle

Rangemaster .50 brochure (4.7Mb)
Rangemaster Poster (808Kb)

A high performance tactical rifle, with an effective range of up to 2,000m, manufactured from RPA’s world beating products, designed for professionals and enthusiasts alike. The heart of the Rangemaster .50 is the RPA 4-lug Quadlock® action renowned for unrivalled accuracy, durability and safety.

50Cal HD resized

Crafted Precision

Action, bolt and barrel coatings are extremely hard wearing, corrosion resistant and have a very low coefficient of friction; wear is therefore greatly reduced, with the major advantage that the rifle may be used in harsh conditions without lubrication.

Triggers are fully adjustable and easily maintained. We feature a two stage trigger operation with a pull weight factory set at 1.5Kg. The safety is incorporated into the trigger design and locks in two places.

An extremely fast lock time (time from trigger pull to detonation) is 1.5 milli-seconds. This further improves accuracy when shooting at long range.

Premium quality barrel chambered to internationally recognised specification. All RPA barrels are pre-machined to accept muzzle brakes or suppressors as standard.
Removable forend bipod which is also height adjustable.

Barrels are fluted for good balance with a length and twist to suit the distance required.
The composite stock folds for transit, enabling easy movement into and out of vehicles and aircraft. Stocks are produced to a high specification, using the latest materials to ensure strength and stability in all climatic conditions.Butt monopod is quickly adjustable for height and incorporates a fine adjustment wheel spike.
Muzzle brake greatly enhances operator comfort and target re-acquisition after firing.Forend allows ancillary component attachment and also incorporates Picatinny rails for scope and ancillary fixings.RPA Rangemasters can be supplied fitted with any commercially available scope, features of which could include zero stop, mil-dot illuminated reticule and mil-rad movement.

Safety & Engineering

Safety is a major factor with RPA weapons, the receiver and bolt is produced from a solid billet of high tensile steel, there are no internal components to work loose and cause injury to the rifle operator.

All RPA rifles are proof fired at an independent proofing facility, meeting UK and International safety standards.


The rifle kit is supplied with instruction manuals and a rigid waterproof case for transit, along with tools and cleaning kit as standard. A full range of support equipment is available on request.


Comparison in size 50cal and 338



Rear Detail of 50cal

Detail of Rear of RPA 50cal

50cal Side view

Side View of RPA 50cal


Rangemaster .50 Tactical Rifle Technical Specifications

Calibre .50 BMG (12.7x99mm)
Barrel length 32″ (812mm)
Twist rate 1 turn in 15″ (1 turn in 381mm)
Overall length 60″ (1520mm)
Length folded including muzzle brake 48″ (1230mm)
Weight including bipod and leupold riflescope 37.3 lb (16.95 Kg)
Magazine capacity 5
Fitment for night vision Yes
Mount for torch/laser designator Yes
Threaded for muzzle brake or sound moderator Yes
Muzzle brake included Yes
Sling attachment points Yes
Supplied with hard waterproof transit case Yes
Drag bag Optional

Rangemaster .50 Tactical Rifle Accessories

  • Drag bag
  • Anti reflection device
  • Sound moderator
  • Foam cheek protector
  • Sling
  • Mirage band
  • Cleaning rod and guide
  • Extra magazines