Factory Installation Available
FREE installation is available on all YHM products. Some restrictions apply, call or write for details.
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Specter vs. Midlength Forearms
YHM would like to clear up some confusion between our Midlength and Specter forearms. The Midlength forearm is designed for a MIDLENGTH gas system (A system created between rifle and carbine length gas systems). The Specter forearm is designed to cover the gas block on a CARBINE length gas system.
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Diamond Series Forearms
YHM is proud to offer it’s newest free floating forearms. These unique forearms feature diamond shaped heat vents, an extended top rail for gap-free installation, “T” marked rails to mark accessory locations, they accept our end caps, and utilize our anti-rotation screws for secure installation. The forearms and barrel nuts are made of 6061-T6 aluminum and hardcoated to military specifications. The jam nut and anti-rotation screws are steel and plated a matte black finish to match. Assemblies include: one jam nut, one barrel nut, two anti-rotation screws, and one forearm tube.
Carbine Length Diamond Forearm (YHM-9630-DX) $137.50 
Midlength Diamond Forearm (YHM-9633-DX) $145.50
Specter Length Diamond Forearm (YHM-9637-DX) $145.50
Rifle Length Diamond Forearm (YHM-9635-DX) $180.50
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Light Weight Free Float 4 Rail Forearms
These forearms utilize our anti-rotation screws to insure that the forearm stays solid even under strenuous use. Perfect for use with forward grips and optics. Our Lightweight Forearms come in 5 lengths: Mini, Carbine, Mid-Length, Specter and Rifle. Features include: mounting points for our Swiveling Sling Studs (YHM-9469), Mil. Spec. Picatinny rails, and they accept our Forearm End Caps. The barrel nut and forearm tube are made of aircraft quality aluminum and hardcoat anodized to Mil. Specs. The jam nut is made from steel and plated a matte black to match. All assemblies include: one jam nut, one barrel nut, 2 anti-rotation screws, and one forearm tube.
"The Mini" (Overall length: 4.150 in .) (YHM-9809A) $110.50
Carbine Length (Overall length: 7.2 in - Weight 10.6 oz.) (YHM-9631) $127.00
Mid-Length (Overall length: 9.2 in -Weight 12.4 oz. ) (YHM-9634) $135.00
Specter Length (Overall length: 9.675 in - Weight 12.9 oz.) (YHM-9638) $135.00
Rifle Length (Overall length: 12.5 in - Weight 14.75 oz.) (YHM-9636) $166.00
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Smooth Carbine Forearm
$145.50
YHM-5000
This free floating forearm features a smooth design for a more comfortable grip while incorporating a full length top rail. The forearm also features three 2.5" rails that extend beyond the front sight to allow the mounting of lights, lasers, and other accessories. This forearm uses our anti-rotation screws to ensure the forearm stays solid, even under severe use.
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Smooth Carbine Forearm With Full Bottom Rail
$145.50
YHM-5000-AA
This free floating forearm features smooth sides for a more comfortable grip while incorporating a full length bottom rail. The forearm also features three 2.5" rails that extend beyond the front sight to allow the mounting of lights, lasers, and other accessories. Our forearm rails can also be purchased separately to add rails to the sides and top if desired. This forearm uses our anti-rotation screws to ensure the forearm stays solid, even under severe use.
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Smooth Midlength Forearm
$145.50
YHM-5004A
This free floating forearm features a smooth design for a more comfortable grip while incorporating a full length top rail. The forearm also features three 2.5" rails at the end to allow the mounting of lights, lasers, and other accessories. This forearm uses our anti-rotation screws to ensure the forearm stays solid, even under severe use.
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Smooth Rifle Forearm
$164.00
YHM-5005
This free floating forearm features a smooth design for a more comfortable grip while incorporating a full length top rail. The forearm also features three 2.5" rails at the end of the forearm to allow the mounting of lights, lasers, and other accessories. This forearm accepts our end caps and uses our anti-rotation screws to ensure the forearm stays solid, even under severe use.
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Two Piece Handguards
These handguards are designed to replace your standard plastic handguards with our 4 rail picatinny design. Simply remove your existing handguard panels and insert these in their place. No gunsmithing required! They are made from lightweight aluminum and hardcoat anodized. The bottom rail removes easily to accomodate accessories such as grenade launchers, flare launchers and shotguns. *Note* Colt carbines require a special model, see below.
Carbine 2 Piece Handguard (YHM-9670) $155.00
Colt Carbine 2 Piece Handguard (YHM-9670-C) $155.00
Midlength 2 Piece Handguard (YHM-9805) $174.50
Rifle 2 Piece Handguard (YHM-9803) $204.00
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Two Piece Customizable Handguards
*NEW* Each handguard set comes with one full length picatinny rail and one 3" elevated rail! These handguards are designed to replace your standard plastic handguards with our customizable design. Simply remove your existing handguard panels and insert these in their place. No gunsmithing required! These handguards allow you to mount our picatinny rails at 45 degree intervals for maximum customization. They are made from lightweight aluminum and hardcoat anodized. The bottom half removes easily to accomodate accessories such as grenade launchers, flare launchers and shotguns. *Note* Colt carbines require a special model, see below. Please see rail descriptions for specific fitment.
Carbine 2 Piece Customizable Handguard (YHM-9840) $152.00
Colt Carbine 2 Piece Customizable Handguard (YHM-9840-C) $152.00
Rifle 2 Piece Customizable Handguard (YHM-9842) $204.00
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Customizable Free Float Forearm System
*NEW* Now each forearm comes with a full length picatinny rail and a 3" elevated rail! Our customizable tubes come in 3 lengths: Carbine, Specter and Rifle. These tubes are a great addition to any firearm just as they are. They feature slotted heat vents, mounting point for our Bipod Stud (YHM-262) and they accept our Forearm End Caps (YHM-9484A or YHM-9484B sold separately). Each tube is drilled and tapped at 45 degree angles to accept our custom rails at 8 different positions. Extra rails can be purchased separately. All assemblies include: one jam nut, one barrel nut, one full length rail, one elevated 3" rail, and one forearm tube.
Carbine Length (Overall length: 7.2 in - Weight 9.5 oz.) (YHM-9431A) $133.50
Specter Length (Overall length: 9.675 in - Weight 12 oz.) (YHM-9430A) $146.00
Rifle Length (Overall length: 12.5 in - Weight 14.6 oz. ) (YHM-9432A) $171.00
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Forearm End Cap
Use these screw-in end caps to dress up and provide protection for the end of your YHM forearm. Does not interfere with the free floating of your barrel and helps keep out debris. Drilled to allow for proper heat venting. Both models fit all handguards that will accept our endcaps.
15/16" Inside Diameter (YHM-9484-A) $20.50
1 1/16" Inside Diameter (YHM-9484-B) $20.50
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Rails for Customizable Forearm System
Made from aircraft quality aluminum and hardcoated to Mil. Specs. These rails are 1/4" tall and come in 5 different sizes to accomodate your specific shooting needs. Made in standard picatinny configuration. Mounting screws included. These rails will co-witness with a flat top upper receiver.
3" Length (YHM-9464-3) $19.00
4" Length (YHM-9464-4) $20.50
6" (Full Length for YHM-9840 Customizable Carbine) (YHM-9464-6) $24.00
7" (Full Length for YHM-9431A ) (YHM-9464-7) $25.50
9 1/4" (Full Length for YHM9430A Specter length tube) (YHM-9464-8) $29.50
11" (Full Length for YHM-9842) (YHM-9464-11) $35.50
12" (Full Length for YHM-9432A) (YHM-9464-12) $35.50
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Elevated Rails for Customizable Forearm System
These taller rails are 3/8” tall to offer more clearance. Made from aircraft quality aluminum and hardcoated to Mil. Specs. These rails come in 5 different sizes to accomodate your specific shooting needs. Made in standard picatinny configuration. Mounting screws included. These rails will not co-witness with a flat top upper receiver.
3" (YHM-9465-3) $19.00
4" (YHM-9465-4) $20.50
6" (Full length for YHM-9840 Customizabel Carbine) (YHM-9465-6) $24.00
7" (Full Length for YHM-9431A ) (YHM-9465-7) $25.50
9-1/4" (Full length for Specter length Tube) (YHM-9465-8) $29.50
11" (Full length for YHM-9842) (YHM-9465-11) $35.50
12" (Full Length for YHM-9432A) (YHM-9465-12) $35.50
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Swivel Stud
$5.00
YHM-9469
This stud attaches to our railed forearms and allows the use of our 1-1/4” Q.D. Sling Swivel.
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Fixed Sling Stud
$8.00
YHM-9476
This stud attaches to our railed forearms and allows the use of our 1-1/4" Q.D. sling swivel. Does not spin like our other model.
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Fixed Bipod Stud
$1.00
YHM-262
This stud allows you to mount a Harris type bipod directly to our free float customizable forearms. It will also allow you to mount our 1-1/4" Q.D. Sling Swivel (YHM-9470).
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Free Float Tube Handguard
These free-float tubes come in three lengths and are knurled to provide a comfortable non-slip gripping surface. These tubes thread right onto your upper receiver. These tubes will not accept our forearm end caps.
"The Mini" (Overall Length 4.150 Inches) (YHM-9810) $55.00
Carbine Length (Overall length: 7.2 in - Weight 10.1 oz.) (YHM-9645) $58.50
Rifle Length (Overall length: 12.5 in - Weight 18 oz.) (YHM-9649) $67.50
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Forearm Wrench
$31.50
YHM-9621
This handy tool allows for the easy removal and installation of YHM’s forearms. Incorporated into the design is a tool for tightening the barrel nut and a spanner wrench for tightening the jam nut. Made from quality hardened steel and black oxide plated.
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Picatinny Vise Jaws
$78.00
YHM-7350
These jaws simply drop into your vise and provide a solid clamping surface on any picatinny rail. They're perfect for guaranteed alignment between your upper receiver and our free-float handguards.
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Barrel Nut
$35.50
YHM-9483
These replacement parts will work with all of our free float forearms.
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Jam Nut
$16.00
YHM-9433
These replacement parts will fit on all of our free float forearms.
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Anti-Rotation Screws
$2.00
YHM-9434
These replacements are used in conjunction with all of our forearms that incorporate anti-rotation screws.
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Low-Profile Rail Covers
These rail covers have a slim design that
effectively protects the rails from damage. Made from a tough plastic composite, these covers snap on easily and provide protection for any picatinny rail. Available in 2 different lengths and 2 different colors, Black or Dark Earth.
Short Black (YHM-9702) $4.50
Long Black (YHM-9701) $12.50
Short DE (YHM-9702-DE) $4.50
Long DE (YHM-9701-DE) $12.50
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Rail Covers
These rubber panels snap on tightly to add comfort and protection to your YHM railed forearm. Available in 3 different lengths and in 2 different colors, Black or Dark Earth.
5 Slot Black (YHM-9676) $4.50
10 Slot Black (YHM-9675) $8.50
15 Slot Black (YHM-9700) $12.50
5 Slot DE (YHM-9676-DE) $4.50
10 Slot DE (YHM-9675-DE) $8.50
15 Slot DE (YHM-9700-DE) $12.50
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15 Slot Rail Covers
$10.00
YHM-9705
These hard plastic rail covers slide onto any picatinny rail and lock in place. They offer full rail coverage on our carbine length forearms. Available in black only.
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