valleys", so the barrel bore has a polygonal (usually hexagonal or octagonal) cross-sectional profile. Polygonal riflings with a larger number of edges have...

commonly used in modern rifling have fairly sharp edges. More recently, polygonal rifling, a throwback to the earliest types of rifling, has become popular...

barrel has a female type polygonal rifling with a right-hand twist. The stabilization of the round is not by conventional rifling, using lands and grooves...

polygonal rifling, which eliminates the normal grooves of a weapons barrel replacing them with a system of "hills and valleys" in a rounded polygonal...

locking piece. The barrels could have traditional rifling or polygonal rifling. Polygonal rifling was an outgrowth of a cold-hammer forging process developed...

improved by the Swiss designer Friedrich von Martini, combined with the polygonal rifling designed by Scotsman Alexander Henry. Though the Snider was the first...

other models having polygonal rifling instead. As of 2016 the PPQ M2 9×19mm Parabellum and .40 S&W barrels also feature polygonal rifling. The PPQ features...

Caplock mechanism Minié ball Muzzleloader Polygonal rifling Slug barrel Smoothbore barrel, opposite of a rifling barrel Tubes and primers for ammunition...

are known as lands. Another system, polygonal rifling, gives the bore a polygonal cross section. Polygonal rifling is not very common, used by only a few...

In the same year Joseph Whitworth patented polygonal projectiles mechanically fitted with polygonal rifling in the muzzle-loaders. They were used in the...

variation of H&K's roller delayed blowback system in a pistol format and polygonal rifling now common in H&K designs. [according to whom?] The P9 is a roller-delayed...

.50 AE bore diameter was .500 in, with conventional rifling, but the switch to polygonal rifling on production Desert Eagles allowed the gauge plug to...

T75 is based on the Italian-made Beretta M92. The T75K3 features polygonal rifling developed at National Defense University which improve both barrel...

use of polygonal rifling in the barrel bore. This replaces the traditional lands and grooves rifling design with a rounded, smooth polygonal pattern...

with cannons using polygonal rifling instead of traditional rifled barrels, which was patented in 1854. The hexagonal polygonal rifling meant that the projectile...

rounds in .50 Action Express. The Desert Eagle's barrel features polygonal rifling. The pistol is primarily used for hunting, target shooting, and silhouette...

semi-automatic handguns. Initially Jericho pistols used barrels with polygonal rifling, which sometimes produces slightly higher velocity due to better bullet...

folding iron sights, the handguard has M-LOK slots. The barrel has polygonal rifling and a new model of flash hider. Barrel life is improved from the 6...

added. New Magpul MOE SL stock added. T91K2 T91K3: The T91K3 features polygonal rifling which increases barrel life and improves accuracy. The 205th Arsenal...

a hard lead alloy intended to reduce fouling of rifling grooves (especially of the polygonal rifling used in some popular pistols). Benefits include simpler...

Internal differences include a new buffer system and a change to polygonal rifling. All SR9s are marked "Made in W-Germany" on the right side of the...

adjusted from 100 to 600 m. It has a heavy free-floating barrel with polygonal rifling and an adjustable stock. The stock is of high impact matte black plastic...

pinned-in front sights rather than dovetail, traditional rifling rather than polygonal rifling, "rolled-on" lettering rather than engraved, and come with...

produced example was the Metford rifling in the Pattern 1888 Lee–Metford service rifle. Although uncommon, polygonal rifling is still used in some weapons...

greater capacity than the competing Mannlicher design. Metford's polygonal rifling was adopted to reduce fouling from powder residue building up in the...

Arisaka rifles were also one of the only firearms of the era to use polygonal rifling in its barrel, rather than lands and grooves. Some of the early issue...

hexagonal polygonal rifling, which meant that the projectile did not have to "bite" into the rifling grooves as with conventional rifling. His rifle...

discharges casings from the right in single shooting mode. The barrel has polygonal rifling and a 1:10 twist rate. A force of 25 N is required to pull the trigger...

Temperatures Propellant (HITP) based on Octogen. The barrel received polygonal rifling. The rifle case received a design by a dedicated designer. This Prototype...

and the dust cover has a picatinny rail. The barrel is made with polygonal rifling. Heckler & Koch P7, another gas-delayed blowback pistol Modern Firearms...