Specifically designed for carbine installations, this is a correct-spec M4 barrel extension with feed ramp and pre-drilled hole for locator pin. Perfect for custom builds, rebarreling jobs, and caliber conversion projects. Integral feed ramp is required for proper chambering in carbine configurations and adds an extra measure of insurance for smooth, reliable feeding in rifles. Fully machined from high-grade 4140 chrome-moly steel for precise fit, strength, and durability. SPECS: 4140 carbon steel, in-the-white.
Fully machined and finished, military style uppers ready for you to install your choice of barrel, carrier, bolt, forearm, and lower to build a custom AR-15. Choose from rugged A2 carry handle style, complete with cuts for mounting A2 rear sight, or A3 flattop with Picatinny accessory rail for mounting a scope, holographic sight, or flip-up “iron” sights, plus etched position numbers in rail slots to ensure repeatability of sight mounting position. Both models feature shell deflector, forward assist housing, and provisions for installing an ejection port cover. Precision machined from a premium-grade aluminum forging and hardcoat anodized for extra strength, with a tough, scratch-resistant Teflon coating. SPECS: Aluminum, hard anodized, Teflon coated, matte black. Fits mil-spec AR-15 lower receiver with .250″ pivot pins.
Molded polymer covers snap over exposed portions of accessory rails to form a positive gripping surface for a comfortable, non-slip hand hold and improved weapon control. Protects your hands from the exposed rail edges and provides a soft cushion to help prevent damage to the rails during storage or transport. Low-profile, flexible polymer guard snaps neatly into the cross-slots on Picatinny rails. SPECS: Synthetic rubber polymer, black, Coyote Brown, or O.D. green. 6-7⁄8″ (17.5cm) long x 1” (2.5cm) wide.
Replacement floorplate brings the speed and controllability of the original Magpul Ranger Floorplate to both 20- and 30-round PMAGs for fast, secure tactical magazine changes. Smoothly contoured, easy-to-grasp finger loop and grooved thumb dimple aid in positive extraction from tight mag pouches and help you hang onto the empty magazine with just a finger after a tactical reload. Made from tough, reinforced polymer overmolded with soft, non-slip synthetic rubber that also cushions the magazine from impact if dropped on a hard surface. Includes molded-in para-cord hole for custom loop configurations. Easy, drop-in installation: remove the PMAG’s factory floorplate as you do for cleaning, and replace it with the Ranger Floorplate. Sold in 3-paks and available in Black, Dark Earth, O.D. Green, and Foliage Green. SPECS: Reinforced polymer, rubber coated. 3 per pak. Fits all PMAG models.
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 setscrews let you control the gas flow, so you can customize the setting for each load. Hex head set screws clamp the block secuely 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. A2-Style – Retains the classic sight tower look of military rifles and carbines. 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. SPECS: Standard – Aluminum, hard anodized, matte black, or stainless steel, natural finish. 1-7⁄8″ (4.7cm) long, ” (19mm) wide. .750″ (19mm) I.D. Heavy – Aluminum, hard anodized, matte black. 1-7⁄8″ long, 1 ” (3.2cm) wide. .936″ (23.7mm) I.D. Low Profile – Carbon steel, matte black. 1-7⁄8″ long, 1″ (2.5cm) wide. .750″ I.D. A2-Style – 416 stainless steel, matte black oxide finish. 1-7⁄8″ long, 7⁄8″ (2.2cm) wide, 3-3⁄8″ (8.6cm) high, .750” I.D.
The Midwest Industries Folding Sight Tower offers and easy bolt on design for simple installation. It also features detent button locks on the front blade in the folded and deployed positions, super smooth ball detent for extreme durability, and a standard M16A2 front sight post. Fully adjustable for elevation, this sight is constructed from 4140 steel and hard coat anodized for lasting durability.
Low-profile, flattop-mounted backup sights deploy instantly at the touch of a finger to provide relief sighting in fluid tactical situations. Drawing on their extensive manufacturing experience with high-grade, reinforced molded polymer technology, Magpul’s engineering team designed the versatile Magpul Back-Up Sight (MBUS) system to be robust, reliable, lightweight, easy to use, and affordable. Streamlined contours mean there’s nothing to snag on brush, sling, or other gear when the MBUS is folded. Spring-loaded ambi release mechanism lets you hit the grooved tab on either side, and the sight deploys and locks in place. Hit the same tabs to retract when you’re done. Integral mount requires less than 1″ of MIL-STD 1913 Picatinny receiver rail space and locks securely in place with the included steel crossbolt. The A2-style front post has plenty of height adjustment for accurate sight regulation on rifles and carbines with any-length barrel; use a standard, four-prong AR-15/M16 front sight adjustment tool. Windage-adjustable rear sight has two apertures: a large, .185″ peep for engaging close-range targets, and a .70″ peep for longer-range shooting. Although designed for AR-type rifles and carbines, the MBUS may be installed on other weapons with Picatinny receiver rails. Available in black, Dark Earth, O.D. Green, and Foliage Green, either as matched front/rear sets or separately. Check out the 360 Image of the Magpul MBUS Rear Sight and the Front Sight. SPECS: Reinforced, injection-molded polymer, Black, Dark Earth, O.D. Green, or Foliage Green. Dimensions apply to front and rear sights; heights measured from top of rail to top of sight. 1.625” (4.1cm) long when deployed, 2.625” (6.7cm) long when folded, 1.25” (3.2cm) wide, .630” (1.6cm) high when folded, 1.5” (3.8cm) high extended. Large aperture, .185” diameter. Small aperture, .70” diameter.
Redesigned hammer pin and anti-rotation links provide the strongest possible system to eliminate pin rotation, and will withstand the additional force exerted by 9mm conversions and suppressed .223 upper receivers. Helps prevent wear to receiver holes, which is especially important for increasingly-valuable M16 and pre-ban receivers. Notched hammer pin locks into slots in the anti-rotation links; trigger is secured with locking screws, and includes lube ports so adequate lubrication reaches the trigger. Anti-rotation links fit on the outside of the receiver to prevent all movement. Pins are CNC-machined, centerless ground for uniformity and heat treated for durability. Available in Standard .154″, Oversized .155″, and .170″ for larger receivers. Oversized Pins help improve accuracy and trigger control by tightening up any trigger slack that may exist in worn or new receivers. Standard-sized pins drop-in and require no modification to the receiver; oversized pins require the use of the 3.95mm Reamer. SPECS: 416 stainless steel pins. .900″ (22.8mm) long, .154″ (3.91mm), .155″ (3.93mm), or .170″ (4.31mm) diameter. Set includes (1) hammer pin, (1) trigger pin, (2) screws, (2) anti-rotation links, hex wrenches, and installation tool. Anti-Rotation Links – Steel, Parkerized finish. Retaining Screws – Steel, black oxide finish. 3.95mm Reamer – Steel. .1555″ (3.95mm) diameter cut.
The RIGHT way to repair and service the AR-15/M16/M4! These kits contain the tools the gunsmith or armorer needs to perform full maintenance and repairs of these rifles in the field or shop. Each tool is designed to do its job in the simplest, most effective manner to maintain and repair these guns correctly – and save time doing it. Standard Kit contains the tools needed to work on the AR-15 and the M16A1 through A4. Premium Kit contains all the tools of the Standard Kit, plus an additional 11 items necessary to repair and maintain the M4 carbine as well. Both kits come in a custom-fitted, hard-side tool box that’s made from nearly indestructible molded polymer resin and meets mil-spec MIL-C-4150 and ATA specifications. The Standard kit’s foam inserts are pre-cut with spaces for the M4 tools, so you can turn it into a Premium Kit anytime simply by adding the Upgrade Kit. SPECS: Standard Armorer’s Kit includes: 12 Ounce Ballpeen Hammer, ” Plastic/Brass Hammer, Firing Pin Protrusion Gauge, ” Square Drive Torque Wrench, Brownells Shop Apron, Vise Jaws, Parts Boxes, Brownells Bench Mat, 10-1/2” Long, ” Square Drive Handle, Magna-Tip #81 Handle, Magna-Tip Stubby Handle, Snap Ring Pliers, Barrel Nut Alignment Gauge, 5.56mm (.223) Headspace Gauge, Brownells #250 Chamber Mirror, Cleaning Rod Small Arms w/Adapter, Combination Wrench, Brownells Roll Pin Punches, Carrier Key Bit Kit, Brownells Roll Pin Holders (Starter/Setter Punches), Bolt Catch Pin Punch, Starrett 1/8” Punch, Taper Pin Starter, Starrett ” Punch, Starrett 5/32” Center Punch, Pivot Pin Detent Depressor, Pivot Pin Detent Installation Tool, Brownells Broken Shell Extractor, 445-6 Bit, Red Bit, LB Bit, Sight Tools, 3/8” Square Drive T-Handle Torque Wrench and Mil-Spec Tool Box. Additional Tools in Premium Kit: Accu-Grip Barrel Vise Jaws, Front Sight Bench Block, Upper Receiver Action Block, Lower Receiver Vise Block, Handguard Removal Tool, Magazine Catch Installation & Removal Tool, Takedown Pin Removal Tool, Bolt Ejector Tool, Magazine Feed Lip Tool, Gas Tube Wrench, Bolt Carrier Carbon Scraper and Buttstock Tool.
Low-profile, steel gas block with integral aluminum flip-up front sight adds minimal weight and bulk to your rifle. Easy bolt-on design for simple installation; three hardened steel hex-head bolts clamp gas block to barrel. Dual ball-and-detent system locks sight tower securely in folded and deployed positions. Standard A2 front sight post adjusts for elevation. Gas block/base with bayonet lug is precision machined from 4140 steel, with manganese phosphate parkerized finish for added strength and wear resistance. Sight tower is machined from 6061 T6 aluminum and hardcoat anodized a matching dark gray. MI-FST fits AR-15/M16 with .750″ O.D. barrel. Deployed height is the same as F-marked USGI front sights; regulated for rifle or carbine with 16″ barrel. MI-AR10-FST fits ArmaLite AR-10 rifles with 16″ and 20″ barrels with .750″ O.D. at gas port. Tower is correct height to regulate with readily available, standard AR-15 rear backup sights. SPECS: Base – 4140 steel, Parkerized, dark gray finish. Sight Tower – 6061 T6 aluminum, hardcoat anodized, matte black. MI-FST – 23⁄16″ (5.6cm) overall length, 7⁄8″ (2.2cm) wide, 35⁄8″ (9.2cm) high with sight tower extended, 27⁄16″ (6.2cm) high with tower folded. 5.3 oz. (151g) weight. Fits barrels with .750″ O.D. at gas block position. MI-AR10-FST – 113⁄16″ (4.6cm) overall length, 3 ” (9.8cm) high with sight tower extended, 2 ” (6.3cm) high with tower folded, 7⁄8″ (2.2cm) wide. 5.8 oz. (164g) weight. Fits barrels with .750″ O.D. at gas port.
