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
Unity Tactical - FAST Magnifier Mount 2.26" FDE - FST-MAPF
Unity Tactical
Now: $241.00Was: $265.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.26" optical centerline height provides faster/easier reticle...Now: $241.00Was: $265.00 -
Out of stockOn Sale
Unity Tactical - FAST LPVO Mount 2.05" FDE - FST-S34205F
Unity Tactical
Now: $335.00Was: $369.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.05" optical centerline height provides faster/easier reticle...Now: $335.00Was: $369.00 -
Out of stockOn Sale
Unity Tactical FAST Red Dot Mount 2.05" FDE - FST-COGF
Unity Tactical
Now: $163.00Was: $179.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.05" optical centerline height provides faster/easier reticle...Now: $163.00Was: $179.00 -
Out of stockOn Sale
Unity Tactical - FAST Micro Red Dot Mount 2.26" FDE - FST-MROF
Unity Tactical
Now: $172.00Was: $189.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.26" optical centerline height provides faster/easier reticle...Now: $172.00Was: $189.00 -
Out of stockOn Sale
Unity Tactical - FAST Micro Red Dot Mount 2.26" Black - FST-MROB
Unity Tactical
Now: $172.00Was: $189.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.26" optical centerline height provides faster/easier reticle...Now: $172.00Was: $189.00 -
Out of stockOn Sale
Unity Tactical - FAST Micro Red Dot Mount 2.26" Black - FST-MISB
Unity Tactical
Now: $169.00Was: $186.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.26" optical centerline height provides faster/easier reticle...Now: $169.00Was: $186.00 -
Out of stockOn Sale
Unity Tactical - Fast Micro Red Dot Mount 2.26" FDE - FST-MICF
Unity Tactical
Now: $186.00Was: $205.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.26" optical centerline height provides faster/easier reticle...Now: $186.00Was: $205.00 -
Out of stockOn Sale
Unity Tactical - Fast Magnifier Mount 2.26" - FST-MAPB
Unity Tactical
Now: $241.00Was: $265.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.26" optical centerline height provides faster/easier reticle...Now: $241.00Was: $265.00 -
Out of stockOn Sale
Unity Tactical - Fast Micro Red Dot Mount 2.26" - FST-COMB
Unity Tactical
Now: $172.00Was: $189.00FAST is a series of optic mounts and platforms that provide end users with a quicker sight picture than standard height mounts. A 2.26" optical centerline height provides faster/easier reticle...Now: $172.00Was: $189.00 -
Knight's Armament - M-LOK Index Stop - 113886
Knights Armament Company
$59.64The Knight's Armament M-LOK Index Stop (KAC PN: 113886) is KAC's precision-machined M-LOK index stop for use on M-LOK compatible handguards, primarily the KAC URX 4 series. The index stop provides a...$59.64 -
Out of stock
Knight's Armament - SR-25 URX 3.1 Forend Assembly 13.5" - 30259
Knights Armament Company
$515.84The KAC 7.62 URX 3.1 Rail is a free floating, fully modular replacement forend for the SR-25 platform. Unlike traditional quad rail designs, the URX 3.1 incorporates short sections of M1913 Picatinny...$515.84 -
Out of stockOn Sale
Knights Armament - SR-25 URX Wrench - 23383
Knights Armament Company
Now: $379.25Was: $399.22Knights Armament SR-25 URX wrench. This wrench is required when installing a URX rail system on an SR-25 rifle. ÂNow: $379.25Was: $399.22