Front Flip Sight Towers These front sights feature either a round hooded front sight guard that allows for fast and accurate sighting or a standard style front sight guard. They feature all steel construction for superior strength in demanding conditions.The flip sight is easily concealed with the push of a button. It flips up and locks in the deployed position. This sight accepts all standard AR sight posts and hardware (Included). With this setup you get the convenience of a flip front sight with the same weight as a standard AR sight tower. This sight’s two-piece design allows it to be mounted on firearms with pinned and welded muzzle accessories. It mounts easily and securely with four cap screws using a 7/64" Allen wrench. These gas blocks have a bore diameter of .750 inches.
Standard Front Flip Sight Tower (YHM-9394) $95.00
Hooded Front Flip Sight Tower (YHM-9394-H) $97.00
Standard Front Flip Sight Tower Without Bayonet Lug (YHM-9395) $95.00
Hooded Front Flip Sight Tower Without Bayonet Lug (YHM-9395-H) $97.00
Standard Front Flip Sight Tower Without Bayonet Lug or Sling Swivel(YHM-9396) $95.00
Hooded Front Flip Sight Tower Without Bayonet Lug or Sling Swivel(YHM-9396-H) $97.00
Flip Front Sight Towers With Bottom Rails This sight adds the convenience of a flip sight along with the versatility of a bottom picatinny rail. Available with either a round hooded front sight guard for fast and accurate sighting or a standard style front sight guard. The flip sight is easily concealed with the push of a button and locks in the deployed position. This sight accepts all standard AR sight posts and hardware (included). The picatinny bottom rail is great for laser sights, flashlights, etc. This sight’s two-piece design allows it to be mounted on firearms with pinned and welded muzzle accessories. It mounts easily and securely with four cap screws using a 7/64" Allen wrench. These gas blocks have a bore diameter of .750 inches. All steel construction for superior strength in demanding conditions.
Hooded Front Flip Sight Tower With Bottom Rail (YHM-9835-H) $125.00
Standard Front Flip Sight Tower With Bottom Rail (YHM-9835A) $122.50
Two Piece Gas Block $75.00$64.00 On Sale! YHM-9390A
This gas block replaces your existing front sight and allows the user to mount accessories to its two picatinny rails. This gas block allows the mounting of our forearms without the removal of your muzzle accessory. Purchase our gas block mounted flip front sight (YHM-9584) or our solid front sight (YHM-9495) to retain your iron sights. It is mounted by the use of four socket head cap screws using a 7/64" Allen wrench. This gas block has a bore diameter of .750 inches. Made from high quality steel and finished with a Mil. Spec. phosphate coating.
Railed Gas Block With Bayonet Lug $80.00$65.00 On Sale! YHM-9836A
This gas block replaces your existing front sight and allows the user to mount accessories to its top picatinny rail while retaining the bayonet lug and sling mount. This gas block allows the mounting of our forearms without the removal of your muzzle accessory. Purchase our gas block mounted flip front sight (YHM-9584) or our solid front sight (YHM-9495) to retain your iron sights. Made from high quality steel and finished with a Mil. Spec. phosphate coating. It is mounted by the use of four socket head cap screws using a 7/64" Allen wrench. This gas block has a bore diameter of .750 inches.
Single Rail Gas Block This gas block replaces your existing front sight and allows the use of dovetail mounted accessories. Installs easily with two cap screws onto barrels of .750 or .625 diameter under the front sight. Purchase our dovetail mounted flip front sight
(YHM-9584) or our solid front sight (YHM-9495) to retain your iron sights. Made from high quality steel and finished with a Mil. Spec. phosphate coating.
Single Rail Gas Block .750 (YHM-9385A)
$67.00$57.00 On Sale!
Single Rail Gas Block .625 (YHM-9386A)
$67.00$57.00 On Sale!
Low Profile Gas Blocks These gas blocks replace your existing front sight to provide a simple, low profile design that can be used to mount a rifle length forearm to a carbine length barrel. They are mounted either by the use of two set screws (YHM-9383) or 2 clamping screws (YHM-9384) and are .950 Inches long. Manufactured from high quality steel and finished with a mil. spec. phosphate coating. Made in the U.S.A. This gas block has a bore diameter of .750 inches.
Low Profile Gas Block, Set Screws (YHM-9383)
$22.00$19.00 On Sale!
Low Profile Gas Block, Slotted (YHM-9384)
$31.50$27.00 On Sale!
Low Profile Gas Block
$67.00
YHM-9381A
This gas block replaces your existing front sight to provide a simple, low profile design that can be used to mount a rifle length forearm to a carbine length barrel. It is mounted by the use of two set screws. Manufactured from high quality steel and finished with a mil. spec. phosphate coating. This gas block has a bore diameter of .750 inches.
4 Rail Gas Block $83.00$69.00 On Sale! YHM-9380
This gas block replaces your existing front sight and allows the user to mount accessories to its four picatinny rails. This gas block can be mounted either by drilling and pinning it in place or by the use of set screws (included). Purchase our gas block mounted flip front sight (YHM-9584) or our solid front sight (YHM-9495) to retain your iron sights. Made from high quality steel and finished with a Mil. Spec. phosphate coating. This gas block has a bore diameter of .750 inches.
Specter Gas Block Inventory Closeout!
The design of this gas block allows the user to mount forearms that extend beyond the standard gas return system. Providing the inside diameter of the forearm is 1-5/8” or greater. It allows the mounting of our forearms without the removal of your pinned or welded muzzle accessory. This gas block consists of a simple, durable, two-piece design that is mounted by the use of four socket head cap screws using a 7/64" Allen wrench. Made from high quality steel and finished with a Mil. Spec. phosphate coating.
Specter Gas Block For .625 Diameter Barrels (YHM-9377A)
$42.00$30.00 On Sale!
Specter Gas Block For .750 Diameter Barrels (YHM-9378)
$43.50$35.00 On Sale!
Bull Barrel Gas Block
$48.00
YHM-9387
This gas block replaces your existing front sight and provides a simple, low profile gas block to your bull barrel. It clamps to the barrel using 3 Allen screws. This gas block has a bore diameter of .936 inches for bull barrels. Manufactured from aluminum and finished with a matte black anodize. Made in the U.S.A.
Railed Bull Barrel Gas Block
$56.00
YHM-9388
This gas block replaces your existing front sight and provides a picatinny rail on the same plane as your flat top AR receiver. It clamps to the barrel using 3 Allen screws. This gas block has a bore diameter of .936 inches for bull barrels. Manufactured from aluminum and finished with a matte black anodize. Made in the U.S.A.
