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Replaces the factory front sight/gas block and allows you to tune the gas system for smoother cycling and operation. Especially critical on match and varmint rifles when shooting both factory and custom-loaded ammunition. Simple setscrew lets you control the gas flow, so you can customize the setting for each load. Hex head setscrews clamp the block securely to the barrel. Installation instructions included. Standard model features a topside Picatinny rail for mounting flip-up front sights and other accessories. Available in lightweight aluminum or stainless steel for additional muzzle weight. Fits barrels with .750" O.D. at gas block. Heavy - Aluminum, with rail, fits heavy barrels with .936" O.D. Low Profile model fits under handguard on .750" barrels. Rugged, all-steel construction resists gas erosion and helps maintain rifle’s weight distribution. Heavy Low Profile aluminum block fits under handguard on barrels with .936" O.D. Eight Torx T15 screws securely clamp the block to the barrel. A2-Style – Retains the classic look of military rifles and carb ines. Two side-mount hex head screws clamp the block securely to barrels with .750" O.D. at the gas block position. Rugged, stainless steel construction resists gas erosion and helps maintain rifle’s weight distribution. Hard, abrasion-resistant black oxide finish. JPGS-5B and JPGS-5S Low-Profile models have a slimmer profile to reduce weight and to fit under a wider variety of handguards. JPGSA is an adapter designed to allow use of a .936 gas block with a .875 barrel.
SPECS: Standard - Available in 6061 T6 aluminum, hardcoat anodized, matte black, or 416 stainless steel, natural silver or black oxide finish. 17⁄8" (4.7cm) long, .950" (2.4cm) wide. .750" (19mm) I.D. Heavy - Aluminum, hard anodized, matte black. 17⁄8" long, 1¼" (3.2cm) wide. .936" (23.7mm) I.D. Low Profile - Carbon steel, matte black. 17⁄8" long, 1" (2.5cm) wide. .750" I.D. Heavy Low Profile - Aluminum, hardcoat anodized, matte black. 17⁄8" (4.7cm) long, 17⁄16" (3.6cm) wide. .936" I.D. 2.6 oz. (74g) weight. Minimum 1.750" handguard I.D. recommended for proper clearance. A2-Style - 416 stainless steel, matte black oxide finish. 17⁄8" long, 7⁄8" (2.2cm) wide, 33⁄8" (8.6cm) high, .750” I.D.
The SLR Rifleworks Sentry Adjustable Clamp On Gas Block gives AR owners total control over their rifle's gas systems, giving them the chance to fine-tune the gun with different ammo or with an attached suppressor.
The SLR Rifleworks Sentry Adjustable Clamp On Gas Block doesn't operate with any small screws or balls like other gas blocks, removing the chance these parts could fail or get lost.
The SLR Rifleworks Sentry Adjustable Clamp On Gas Block is adjustable with an included tool and features a clamp-on attachment design that is guaranteed to provide a solid gas seal.
The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block ensures that AR-15 shooters have the ability to fine-tune their gas system for optimum operation.
The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block is constructed with a simple metering system that doesn't use springs or balls and is adjustable through the use of an included tool.
The SLR Rifleworks Sentry Adjustable Set-Screw Gas Block is equipped with two set screws that lock the block into the barrel for an ideal gas seal.
Multi-purpose front sight works as a fully functional gas block, plus delivers lifesaving backup when primary optics fail or become hindered by low light or poor weather conditions. Machined, steel body features a spring-loaded pushbutton that locks sight in the deployed position. When not in use, simply depress the button and fold down for an unobstructed view through your optics. Protective ears guard the sight post from blows incurred during duty. Split, barrel clamp design allows easy mounting to standard contour barrels without removal of flash hiders or muzzle brakes. Hex cap screws pull clamping halves tight to barrel for complete sight immobilization when properly tightened. Durable, mil-spec, phosphate finish resists rust and corrosion. YHM-9394 includes bayonet lug and pivoting sling swivel that accepts tactical slings up to 1¼" wide. Rubber coating prevents swivel from rattling and giving away your position while on patrol. YHM-9395 has sling swivel, no bayonet lug. YHM-9835A has Picatinny-style under-rail that accepts lights, lasers, and other forward-mounted accessories. No sling swivel.
Luth-AR factory replacement Gas Blocks. Available in .750 and .936 diameters. Fits standard AR-15 rifles.
One-piece, low profile, steel gas block fits under most free-float handguards for a clean, uncluttered look. Models available to fit .625", .750" or . 936" O.D. barrels. Locks securely to barrel with three steel setscrews.
SPECS: 4140 billet steel, manganese Parkerized finish, matte black. Available sizes: .625". .750" – 1¾" (4.4cm) long, 13⁄8" (3.4cm) high. 3.6 oz. (102g) weight. .936" – 113⁄16" (4.6cm) long, 1½" (3.8cm) high. 3.6 oz. weight.
Designed to fit AR-15 and M16 barrels, the BCM low-profile gas block is machined from high quality steel to Mil-Spec tolerances. Gas block includes set screws for mounting and a phosphate finish for corrosion and wear resistance. Available with either .625" or .750" inside diameter.
SPECS: Machined steel, phosphate finish. 1.34" high, (3.4cm), 1" long (2.5cm). Includes set screws for mounting.
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