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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KAC Knights Armament Company "USMC" Marked Micro Rear Sight - (Pre-Owned)
Knights Armament Company
$74.99The KAC Knight's Armament "USMC" Marked Micro Rear Sight — Pre-Owned (KAC PN: 25650-1) is a pre-owned Knight's Armament Folding Micro Rear Sight with "USMC" (United States Marine Corps) markings,...$74.99 -
Ruger - 10/22 Stripped Aluminum Receiver - SCU-0129
Ruger
$65.00This is a new Ruger factor stripped aluminum receiver compatible with 10/22 pattern firearms. Black Stripped Made in the USA Note: These are stripped receivers so they will not come with any...$65.00 -
Out of stock
KAC Knights Armament Company SR-25 URX-6 Handguard 19" 123854-3
Knights Armament Company
$396.00Knight's Armament SR-25 URX 6 19-inch handguard engineered specifically for KAC 20-inch and longer Mod 2 rifle builds. Requires a notched KAC upper receiver and proprietary installation tools for...$396.00 -
Out of stock
KAC Knights Armament Company SR-25 URX-6 Handguard 14.5" 123854-2
Knights Armament Company
$360.00Knight's Armament SR-25 URX 6 14.5-inch handguard engineered specifically for KAC 16-inch Mod 2 rifle builds. Requires a notched KAC upper receiver and proprietary installation tools for proper setup...$360.00 -
Out of stock
KAC Knights Armament Company SR-25 URX-6 Handguard 13" 123854-1
Knights Armament Company
$360.00Knight's Armament SR-25 URX 6 13-inch handguard engineered for 14.5-inch K5 and K7 rifle builds. Requires a notched KAC upper receiver and proprietary installation tools for proper setup. Free-float...$360.00 -
Out of stock
KAC Knights Armament Company SR-15 URX-6 Notched Handguard 12.75" 122025-2
Knights Armament Company
$324.00Knight's Armament URX 6 12.75-Inch Handguard. Engineered specifically for the SR-15 platform, this lightweight free-float rail system delivers exceptional rigidity and eliminates barrel shift for...$324.00 -
Armageddon Gear Suppressor Cover 175x6.75 AG0305
Armageddon Gear
$78.38Suppressor cover: 175x6.75 The Armageddon Gear Suppressor Mirage Cover is designed to reduce and delay suppressor mirage for improved sight picture and target visibility during precision shooting...$78.38 -
Armageddon Gear Standard Temp Suppressor Cover TBAC Magnus CB AG0352
Armageddon Gear
$78.38Suppressor cover: standard high-temp, TBAC Magnus CB The Armageddon Gear Suppressor Mirage Cover is designed to reduce and delay suppressor mirage for improved sight picture and target visibility...$78.38 -
Armageddon Gear Standard Temp Suppressor Cover Otter Creek Polonium & Polonium 30 AG0222
Armageddon Gear
$78.38Suppressor cover: standard high temp, Otter Creek Polonium/ Polonium 30. The Armageddon Gear Suppressor Mirage Cover is designed to reduce and delay suppressor mirage for improved sight picture and...$78.38 -
Out of stock
Glock - .380 Auto OEM Complete Slides #GLOCK-380-SLIDE
Glock
$369.75Complete compact size .380 slide assembly for compact size 9mm/.40/357 frames Generations 1, 2, and 3 models 19, 23, and 32. Features a 4.02” barrel and a 6.02 sight radius. Standard fixed sights...$369.75 -
Out of stock
Knight's Armament - Aimpoint Micro 45° Offset Rail Mount - #115601
Knights Armament Company
MSRP: $163.72$156.43The KAC 45 Degree Offset Aimpoint Micro Mount is intended to be attached to either the 3 o’clock or 9 o’clock rail position, placing the red dot to the side of a primary optic at a 45-degree angle...MSRP: $163.72$156.43 -
Out of stockOn Sale
LMT Defense - 7.62/5.56 Rear Flip-Up Battle Sight - #L8JT
LMT Defense
MSRP: $162.00Now: $145.80Was: $150.30The L8JT is the rear sight for users whose primary sighting system is a red dot or variable power optic. This bomb proof rear sight from LMT Defense is intended as an excellent back up iron sight...MSRP: $162.00Now: $145.80Was: $150.30