Manufactured by civilian defense contractor Stent Security Solutions, the R91 assault rifle is a conventional design chambered for 5.56mm ammunition. Employing a roller delayed blowback system, it is a very sturdy design, with simple iron sights that consist of a rotary rear drum and hooded front post, a fire selector switch with three settings (safe, fully automatic fire, single shot), and a flash suppressor. The final touch is the wooden stock and handguard.
The R91 was manufactured by Stent as part of its R series, superseding the manufacturer's own M series of combat assault rifles in the early 21st century. While other models and variants were developed, the R91's combination of ruggedness, firepower, and low manufacturing costs resulted in its adoption as an assault rifle of the National Guard and issuance to troops on the Anchoragefront.
The number of working units is particularly high in the Capital Wasteland, as the National Guard units deployed there used it widely. It remains a popular sight among the inhabitants of the region, particularly slavers and raiders, though it is also available for purchase from traders and weapon dealers.
This weapon is the carbine variant of the R91 assault rifle. Its modifications, including an extended box magazine, suppressor, scope, and lack of stock, suggest it was created to be used for special operations forces. The weapon fires 5.56mm rounds and utilizes a 24-round magazine.
Despite its scope, the weapon still suffers from the typical inaccuracy of carbines at long-range combat, limiting its suitability only for short and mid-range combat. It is one of the favored weapons of the raiders in The Pitt and in 2281, Mick is known for having one in his secret collection in Freeside.
This weapon is the best gun Everett has ever used.
The Perforator is a unique infiltrator. It does more damage per shot, has a higher DPS, critical chance, critical damage, but a higher AP cost and significantly less durability. The biggest differences are the reduced rate of fire; the Perforator fires 2 shots for every 3 shots that the Infiltrator can fire and the reduced spread (which makes the rifle functionally more accurate over a longer distance).
Although the Perforator is a unique infiltrator, it cannot be repaired with infiltrators, but can be repaired with the more common assault rifle. This weapon fires two shots in V.A.T.S. opposed to an ordinary assault rifle that fires three shots.
↑Appearances in Operation Anchorage, and Mothership Zeta.
↑The Lone Wanderer: "You got anything for me?" Everett: "I probably shouldn't, but damn if you ain't earned it. Here. This is the best gun I ever had. A little slower on the trigger, but she makes up for it in power and accuracy. Use her in good health." (Everett's dialogue)