B.M.A.S. 3-Rail Gas Block only |
The B.M.A.S. 3-Rail Gas Block can be ordered on new barrels as a factory installed option, or we can factory retrofit existing sight bases on .750" diameter barrels. It's three rails are in standard Picatinny configuration to allow addition of flashlight or laser as side mounted accessories. The B.M.A.S. Three Rail Block is precision milled from alloy steel; finished in black manganese phosphate; and drilled and tapped on the bottom for the addition of a sling swivel stud (Note: this stud is not intended as a bipod mount).
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B.M.A.S. Angled Accessory Mounts: One Slot Mount |
These handy mounts allow attachment of various accessories at a 45� angle on any "flat-top" Upper Receiver, or any multi-rail (Picatinney or Weaver type) forend. They are useful for flashlights or laser aiming devices, or with a pair, you could mount a scope in an "offset" position and still retain use of iron sights. Three different lengths are available: a "One Slot" type (3/4" length); "Three Slot" type (1 3/8" length); and "Five Slot" type (2 1/8" length). Machined from aircraft quality aluminum and finished in a matte black hard anodize, all attach to your rail surface with socket head screws.
Options: One Slot Mount, Three Slot Mount or Five Slot Mount
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B.M.A.S. Clamp-on Rear Flip-Up Sight |
An aircraft grade aluminum, flip-up auxiliary sight featuring dual apertures, 1/2 M.o.A. windage adjustment, black anodized finish, convenient right hand adjustment knob and full height sight apertures. Height when folded is 1/8" lower than similar designs.
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B.M.A.S. Detachable Front Flip-up Sight |
The B.M.A.S. Detachable Front Flip Sight (patent pending) is designed to clamp snugly on the gas block's top Picatinny rail with a pair of socket head screws for repeat zero every time. Machined from aircraft aluminum billet, it locks up or flips down at the touch of a button. A standard A2 front sight post with spring and detent locking system offers elevation zeroing just as with the original M16A2 sight system.
Options: Sight Only, 3-Rail Gas Block or Sight and Gas Block Set
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B.M.A.S. Fixed Clamp-on Front Sight |
A standard height, fixed style front sight, this unit adds the convenience of a quick detach knurled thumbnut and clamping bar for easy removal. Returns to zero upon reattachment and includes standard AR Front Sight Post and Detent System - adjustable for elevation.
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B.M.A.S. Flat-Top Fixed Rear Sight |
This AR15 type fixed Iron Sight offers the option of mounting optics further forward on the flat-top rail. The sight's base is a heavy, black anodized aluminum block - other parts are steel. Windage and elevation adjustments are 1/2 M.o.A.
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B.M.A.S. Flip Sight Sling Swivel Stud |
Threaded 3/8 x 24 to fit the B.M.A.S. V Match Front Flip Sight above - accepts any quick detach type sling swivel like our KNS-4.
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B.M.A.S. Folding Foregrip |
The mounting base on this broomstick style grip incorporates the B.M.A.S. push-button mechanism for fast deployment. Base mounts to any Picatinny rail with one Allen head screw - can be mounted to fold the handgrip forward or backward according to personal preference or other accessory usage.
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B.M.A.S. Folding Front Sight/Gas Block |
This Gas Block/folding Front Sight Combination is all steel construction, easily actuated with the push of a button, and locks in the deployed position. It includes a standard AR front sight post, detent and detent spring, and is the same weight as a standard AR sight tower. The sight's split design allows it to be mounted onto barrels that already have pinned or welded muzzle brakes or suppressors. It attaches easily with 4 cap screws (use of Loctite is recommended), and includes a Bayonet Lug and Sling Loop. All pieces are Manganese Phosphate finished for protection against corrosion. Shown flipped up in the foreground and folded in the shadowed image. This unit fits all standard AR-15 type barrels with a .750" diameter at Gas Port.
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B.M.A.S. Forward Pistol Grip Assembly |
This unit combines a rail mount clamp with a standard AR A2 composite plastic pistol grip that allows easy attachment onto any Picatinny rail section.
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B.M.A.S. Four-Rail Free-Floater Handguard for Rifles |
The four Picatinny rails machined into these free floater forends offer unlimited mounting options for sights, scopes, grips, lights, lasers, etc. Venting slots all around aid in barrel cooling, and rail front edges are drilled and machined to accept the B.M.A.S. Swivel Sling Stud (Note: That stud would not function as a bipod mounting point). These forends are machined from aircraft quality aluminum and hardcoat anodized to mil. specs. The rifle model fits 20" and longer barrels; the carbine version is designed for 16" barrels. Assemblies include forearm, barrel nut and jam nut.
Note: Barrel/Front Sight disassembly is required for installation.
Options: For Rifles or Carbines
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B.M.A.S. Front Flip Sight for V Match Rifles and Carbines |
A high quality front sight that clamps around the V Match milled sight base/gas block - designed to be used with any open iron rear sight. This patent pending Front Flip Sight is machined from aircraft aluminum with an anodized finish, installs with an Allen wrench, locks up or down with a push button and is elevation adjustable. A standard front sight post is included, and the base is drilled and tapped for our B.M.A.S. Sling Swivel Stud (see YHM-9364 below).
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B.M.A.S. Front Flip-up Sight/Three-Rail Gas Block SET |
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The B.M.A.S. Detachable Front Flip Sight (patent pending) is designed to clamp snugly on the gas block's top Picatinny rail with a pair of socket head screws for repeat zero every time. Machined from aircraft aluminum billet, it locks up or flips down at the touch of a button. A standard A2 front sight post with spring and detent locking system offers elevation zeroing just as with the original M16A2 sight system. The B.M.A.S. Three Rail Block is precision milled from alloy steel; finished in black manganese phosphate; and drilled and tapped on the bottom for the addition of a sling swivel stud (Note: this stud is not intended as a bipod mount).
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B.M.A.S. Handguard Mounted Flip-up Sight |
The Bushmaster Modular Accessories System solution to a handguard mounted back-up iron sight is this low profile, front flip-up unit. It attaches to any forend Picatinny rail, and folds down out of line of sight at the push of a button. It locks up in a deployed position, and mounts easily with a large knurled thumbscrew. Low profile, durable and lightweight all steel construction - manganese phosphate finished - includes AR square post, detent and spring - elevation adjustable.
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B.M.A.S. Integral Flat-top Forend for Rifles |
Fits the A3 type "flat-top" rifle or carbine, and mounts using a replacement barrel nut (included - major disassembly of rifle required). With the new barrel nut in place and aligned for the gas tube, the Forend slides onto the A3 Upper's rail, then locking screws and a "locking block" clamp it firmly in place. This system free-floats the barrel, offers four Picatinny Rails, and a sling mounting plate with swivel stud. Machined aircraft aluminum finished in matte black, hard anodized, and vented for minimum weight.
NOTE: The B.M.A.S. Low Profile Rear Flip-up Sight (YHM-9680) will fit behind this unit on the A3 Upper's rail.
Options: For Rifles or Carbines
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B.M.A.S. Low Profile Clamp-on Front Sight |
A low profile design Front Sight of quality alloy steel that folds flat at the touch of its side button to allow clearance for any large bell scope you might choose to mount. It flips up to lock in the deployed position with zero repeatibility, and includes a standard, AR Front Sight Post and Detent System. Black phosphate finished - made in USA.
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B.M.A.S. Low Profile Rear Flip Sight |
Bushmaster's flip-up rear sight for AR15 type Flattop Receivers features a steel base, a quick release thumb screw, and an aluminum stem. This sight locks up (deployed position) with the push of a button, and folds down to .840 inches above the upper receiver. Windage adjustment is 1/2 M.o.A., and a standard dual aperture rear peep is fitted. Mounts to any Picatinny rail and will "co-witness" with standard AR15, M16 and M4 type front sights. Once sighted-in on your rifle, it can be removed and reattached with no loss of "zero" - also fits behind the A.R.M.S. S.I.R. System forends.
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B.M.A.S. Quick Detach Q. D. Rail Extension |
Available in 4" - 7" - 11.25" Lengths... These precision machined Rail Extensions - in standard Picatinny rail dimensions - mount on all AR15/M16 flat-top Upper Receivers to elevate the scope/optic mounting surface approx. 1/2''. The two longer lengths can join and solidify the Upper Receiver to any Four Rail Forend offering the extra mounting surface length necessary for very large/long scopes or "scout-style" mounting. 11.25" Rail offers the convenience of quick detach/reattach with knurled thumbnuts. Anodize finished machined aluminum with phosphated steel thumbscrews and clamping bars.
Options: 4" Extension, 7" Extension or 11.25" Extension
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B.M.A.S. Rail Extension |
This 5" rail extension attaches to any flat-top upper receiver to raise and forward mount a variety of optics. Extension's height is the same (1/2") as our B.M.A.S. scope risers (next page). Shown at right on flat-top, and separately, it is precision machined of aircraft aluminum with a hard anodize finish.
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B.M.A.S. Rail for Rifle Handguard |
Add accessories to any standard Rifle or Carbine handguard with these Anodized Aluminum Rails. Mounting requires removal of the handguards and inner shields - Rails fasten through the existing vent holes, and are tapered so that accessories mount on same plane as barrel and bore. Vent holes are aligned with existing handguard vents for proper barrel cooling. The Car Length Rail will fit on a Rifle length handguard if desired. Handguards have the possibility of movement, so we do not recommend installation of optics or lasers on these rails.
Handguards not included.
Options: Rifle Handguard or CAR Handguard
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B.M.A.S. Scope Riser |
This Riser / Rail Segment will solve the problems of scope movement or rocking that might be encountered with individual riser sections. A 5.25" Rail Section in standard Picatinny configuration will mount on any Flat-top Upper to raise the platform 1/2". Perfect on varmint rifles - accepts most types of scopes, red dot sights, and other optics. Machined from aircraft quality aluminum and hardcoat anodized to military specifications.
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B.M.A.S. Scope Risers: 1 1/4" Length |
Increase scope mounting height on flat-top style ARs by 1/2 inch to achieve proper cheek weld (two Risers are required - one for each scope ring). Hard anodized aircraft aluminum, they fit all Picatinny/Weaver base dovetails.
Options: 1 1/4" Scope Riser or 3/4" Scope Riser
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B.M.A.S. Scope Risers: 3/4" Length |
Increase scope mounting height on flat-top style AR�s by 1/2 inch to achieve proper cheek weld (two Risers are required - one for each scope ring). Hard anodized aircraft aluminum, they fit all Picatinny/Weaver base dovetails.
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B.M.A.S. Solid Vertical Forearm Grip |
Slides onto Picatinny rail forends and tightens with few twists to add stability and control of muzzle rise in rapid fire.
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B.M.A.S. Split Four-Rail Handguard for Carbines |
The "split" design of this handguard set allows easy installation of an accessory rail system on any AR type Rifle. Light weight and beautifully machined of aircraft aluminum, they snap in place of your standard carbine or rifle handguards, and offer full length Picatinny configuration rails for attachment of the flashlight/laser sight accessories of your choice. The rails are positioned at 12 - 3 - 6 - 9 o'clock, and the top handguard can be used in conjunction with an M203 Grenade Launcher. Thoroughly vented to keep your barrel cool, they are finished in mil. spec. matte black anodize to eliminate glare and protect against corrosion.
Note: These will not fit the DCM rifle or .308
Options: Rifle Length or Carbine Length
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B.M.A.S. SuperLight Barrel Bushings |
This set of steel bushings fit the thinner Bushmaster SuperLight Barrels - order in addition to Triple Mount Kit above.
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B.M.A.S. Triple Mount Rail Kit |
A quality multi-purpose accessory mount that clamps to the barrel of your AR rifle and fits around the front sight with three separate rail surfaces to allow mounting flashlights, bipod, laser sights, etc. Designed to fit both Post & Pre-Ban barrels (with bayonet lug), there are inserts included with this kit that allow fitting to either .720" diam. (20"/24") or .740" diam. (14.5"/16") barrels. This triple mount will accept all Picatinny/Weaver base attachments, and is machined from solid, black anodized, aircraft aluminum with Allen head clamping screws.
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Bennie Cooley Co-Witnessing Adjustable Mount |
This sight mounting platform for the AR15/M16 is hailed as the most versatile co-witnessing mounting system made. It is vertically adjustable for easy alignment and custom fitting of any red dot\ optic (EOTech Holosight, Trijicon Reflex, Aimpoint Comp or others) in relation to the iron sights of the rifle or carbine. It mounts into the A2 Carry Handle with a large hex-head nut/threaded post, and height adjustments are made to the Picatinny front rail with 8/32 button head retaining screws and the supplied 3/32 Allen wrench.
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