Gun Parts
Welcome to the Gun Parts superstore at Boss Firearms Company, LLC. Whether you are undertaking a custom precision build, performing routine armorer maintenance, or upgrading an existing platform, we stock the high-performance components you need. As an authorized dealer for premium OEM and aftermarket manufacturers, we provide everything from stripped receivers and match-grade triggers to enhanced bolt carrier groups (BCGs) and duty-ready barrels for rifles, handguns, and shotguns.
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Out of stockOn Sale
Knights Armament - 34mm Modular Scope Cap - 113892
Knights Armament Company
Now: $138.58Was: $145.88Knights Armament Modular scope cap allows for attaching accessory sighting systems at the left or right 30 degree offset, or in the 12 o’clock position. Compatible with all appropriate size KAC...Now: $138.58Was: $145.88 -
Out of stockOn Sale
Knights Armament - 30mm Modular Scope Cap - 113914
Knights Armament Company
Now: $138.58Was: $145.88Modular scope cap allows for attaching accessory sighting systems at the left or right 30 degree offset, or in the 12 o’clock position. Compatible with all appropriate size KAC scope mounts.Now: $138.58Was: $145.88 -
Out of stockOn Sale
Knights Armament - Trijicon RMR Modular Scope Cap Attachment - 113909
Knights Armament Company
Now: $129.95Was: $136.79Allows attachment of optics with Trijicon RMR footprint to the Modular Scope Cap.Now: $129.95Was: $136.79 -
Out of stockOn Sale
Knights Armament - Rear Sight Peep Aperture Insert 300 meter - 97081
Knights Armament Company
Now: $2.81Was: $2.96This KAC Aperture Sight Insert snaps into a 300 Meter Flip Up Rear Sight, constricting the peep aperture for a more precise sight picture.Now: $2.81Was: $2.96 -
Knights Armament - Universal Bridge - 111793
Knights Armament Company
$968.81The Knight's Armament Universal Bridge (KAC PN: 111793) is KAC's low-profile Picatinny rail accessory bridge for mounting a secondary device over a KAC RAS or URX handguard. The Universal Bridge...$968.81 -
Out of stockOn Sale
Knights Armament - Obverse Shoe Set (OSS) - 111782
Knights Armament Company
Now: $327.86Was: $345.11The OSS kit is two-part user level modular upgrade for the PVS-14 format monocular. No modification to the legacy monocular, special tools or training are required for an OSS upgrade which takes...Now: $327.86Was: $345.11 -
Out of stockOn Sale
Knights Armament - HVM Shoe Set - 111787
Knights Armament Company
Now: $222.52Was: $234.23HVM is a two-show kit that supports various non-OEM chassis systems as well as the KVC M14 modular monocular housing as a multi-sided dovetail interface. The top/helmet shoe affixes securely via...Now: $222.52Was: $234.23 -
Out of stockOn Sale
Knights Armament - K-Clip Shoe Set - 113309
Knights Armament Company
Now: $217.26Was: $228.69Knights Armanent K-Clip’s are intended for open source/universal type adaptation in which conversion from a legacy style MUM type interface plate is converted to a modern more versatile dovetail...Now: $217.26Was: $228.69 -
Out of stockOn Sale
Knights Armament - D-Collar Aluminum - 113036
Knights Armament Company
Now: $130.35Was: $137.21The Knights Armament D Collar adds significant functional utility. The aluminum D Collar provides a rigid and protective centrifugal anchor point for various aftermarket accessories while providing...Now: $130.35Was: $137.21 -
Out of stockOn Sale
Knights Armament - D-Collar Titanium - 111783
Knights Armament Company
Now: $130.35Was: $137.21The Knights Armament D Collar adds significant functional utility. The titanium (suggested for plastic housings), the D Collar provides a rigid and protective centrifugal anchor point for various...Now: $130.35Was: $137.21 -
Out of stockOn Sale
Knights Armament - Universal Night Sight Long-Range - AN/PVS-30
Knights Armament Company
Now: $14,376.67Was: $14,469.00The Knights Armament UNS LR LP clip-on weapon sight, Type Classified as AN/PVS-30 adds high performance Gen3 light intensification night vision to most rifle and day scopes. This product is...Now: $14,376.67Was: $14,469.00 -
Out of stock
Spuhr - Picatinny Rail 55mm - A-0003
Spuhr
$62.50Picatinny Rail for Spuhr interface. Includes screws. Height: 10 mm/0.39” Length: 55 mm/2.16” Weight: 18 g/0.6 oz$62.50