Geissele Maritime AR-15 Bolt Catch
The Geissele Maritime Bolt Catch is designed with the Warfighter in mind and will operate with any lower receiver equipped to accommodate the M16/M4 Carbine bolt catch. The increased surface area encourages ease of operation when the bolt is locked back or when the bolt is removed after a magazine shift. In addition, the expanded controls provide improved flexibility for left-hand shooters who no longer have to break their grip to manipulate the bolt capture. Left-hand shooters can quickly access the controls by using the index finger of their left hand to make magazine adjustments and to lock the bolt back much quicker and more effectively. Aggressive checkering covers the surface of the levers giving a textured surface to the Geissele Maritime Bolt Grab that allows positive feedback to the shooter’s hand when used with gloves or at night. Manufactured from 8620 stainless steel and manganese phosphate coated correctly heat-treated, the Geissele Maritime Bolt Capture is intended to serve as an improved mil-spec substitute and to enable our warfighters to bypass the M16/M4 carbine platform.
Features and Benefits of the Geissele Maritime AR-15 Bolt Catch:
- Strong – heat treated 8620 steel – won’t fail under hard use
- Black Parkerized (manganese phosphate) finish resists surface wear & corrosion
- Large, deeply textured, two-part contact pad
- Fits any lower receiver that accepts a standard mil-spec AR-15 / M16 / M4 bolt catch
- Bolt catch spring, plunger & roll pin not included – recycle your old parts or purchase separately
Please Note: A mil-spec bolt catch spring and plunger are required for assembly and areNOTincluded. If the Maritime Bolt Catch is replacing an existing mil-spec bolt catch, please use care when disassembling the component from your lower receiver as you will need these parts to install the Maritime Bolt Catch.
Compatibility with billet AR-15 lower receivers is unknown. Please also note that the extended controls of the Geissele Maritime Bolt Catch will partially cover the pin hole for the hammer, a smaller punch may be required to push the hammer pin out of the receiver from the left side, and the hammer pin should only be installed from the right side of the receiver.







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