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When building your next AR or AK firearm, you’ll arrive to the upper parts and may get overwhelmed with the overall number of parts that make up the upper assembly as well as the different options available to you. From the barrel itself to the charging handle, handguards, gas blocks, muzzle devices, complete uppers and everything in between. Click-Click-Boom has you covered with all of the biggest brands as well as parts for those on a budget.
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AR/AK Barrels
12 Products
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Bolts, Carriers & BCGs
16 Products
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Charging Handles
17 Products
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Forward Assist / Dust Covers
21 Products
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Gas Blocks
17 Products
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Gas Tubes
8 Products
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Handguards
24 Products
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Misc. Upper Parts
66 Products
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Muzzle Devices
21 Products
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Upper Receivers
3 Products
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AR AK Parts, Forward Assist / Dust Covers, Gun Parts, Upper Parts
Spike’s Tactical AR-15 Ejection Port Door Cover Crusader Steel Black SED7018
$17.99Spike’s Tactical is a US based AR manufacturer which creates high quality parts, uppers, and complete rifles. Every component is manufactured to Mil-spec standards and is backed by the…
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AR AK Parts, AR/AK Barrels, Gun Parts, Upper Parts
Bushmaster AR-15 BArrel 5.56 NATO 16in. M4 With Gas Block 1:7
$229.99Bushmaster AR-15 BArrel 5.56 NATO 16in. M4 With Gas Block 1:7
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AR AK Parts, Forward Assist / Dust Covers, Gun Parts, Misc Gun Parts, Upper Parts
Spike’s Tactical AR-15 Ejection Port Door Cover Punisher Steel Black SED7005
$17.99Spike’s Tactical is a US based AR manufacturer which creates high quality parts, uppers, and complete rifles. Every component is manufactured to Mil-spec standards and is backed by the…
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AR AK Parts, Gun Parts, Upper Parts, Upper Receivers
Stag Arms Stripped Upper Receiver with Upper Parts Kit (BLEM)
$99.99The A3 Stripped Upper Receiver with Upper Parts Kit is made to mil-spec standards and ready for your next build. The Upper Parts Kit includes everything you need to…
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AR AK Parts, Gun Parts, Lower Parts, Misc. Upper Parts, Small Lower Parts & Components, Upper Parts
Davidson Defense AR-15 M16 M4 Titanium Firing Pin 5.56 NATO .223-Made in the USA
$24.99Precision-machined Titanium firing pin is nearly 40% lighter than a standard steel pin for faster lock time. Minimizes risk of accuracy being compromised by weapon movement before the pin…
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AR AK Parts, Charging Handles, Gun Parts, Upper Parts
CMMG 22ARC Chargin Handle Assembly Specifically Designed for CMMG AR Conversion Kits
$21.99Specifically designed for use with 22ARCs to prevent spent casings from becoming lodged between the bolt and charging handle.
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AR AK Parts, Forward Assist / Dust Covers, Gun Parts, Upper Parts
Spike’s Tactical AR-15 Forward Assist Assembly Kit Matte Black Finish
$17.99Spike’s Tactical is a US manufacturer which creates high quality parts, uppers, and complete rifles. Every component is manufactured to Mil-spec standards and is backed by the Spikes Tactical…
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AR AK Parts, Bolts, Carriers & BCGs, Gun Parts, Upper Parts
AR-15 Semi-Auto Bolt Carrier Group Mil-Spec 8620 158 Bolt Shot Peened
$139.99R GUNS AR 5.56X45mm (223, 300 BLACKOUT) SEMI AUTO BOLT ASSEMBLY MIL-SPEC 8620 CARRIER CARPENTER 158 BOLT SHOT PEENED MPI/HPT TESTED TOOL STEEL EXTRACTOR 4140 GAS KEY MIL-SPEC STAKED…
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AR AK Parts, Gun Parts, Lower Parts, Lower Parts Kits, Misc. Upper Parts, Upper Parts
Doublestar Corp. OOPS! Replacement Kit, For Most Commonly Lost Parts AR791
$21.99Parts included: – 4-Takedown detent springs – 4-takedown detents – 2- buffer detents – 2- buffer detent springs – 2- firing pin retaining pins – 2- extractor springs with…
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Gun Parts, Muzzle Devices, Upper Parts
Tacfire Inc. AR-15 5.56NATO/.223REM AR-15 Flash & Sound Forwarder Knurl Black Nitride
$44.99This linear compensator redirects sound and concussion away from the shooter and down range. This device is particularly useful for AR Pistol builds and rifles with short barrels. The…
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AR AK Parts, Forward Assist / Dust Covers, Gun Parts, Upper Parts
DPMS AR-15 Dust Cover Door Assembly Complete with Hinge Pin, Springs, Ring, Cover
$17.99DPMS AR-15 Dust Cover Door Assembly Complete with Hinge Pin, Springs, Ring, Cover
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AR AK Parts, Gun Parts, Misc. Upper Parts, Optics Accessories, Upper Parts
B-Square AK47 MAK90 Scope Mount With 1 in. Low Rings
$49.99This Galil saddle scope mount is a full receiver length mount and uses the original pin placements (threaded pins provided) in the receiver for a secure fit.
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AR AK Parts, Gun Parts, Misc. Upper Parts, Upper Parts
Magpul AR-15 MOE Scout Mount One O’Clock Right Side Polymer Black MAG403-RT-BLK
$12.99Made from a proprietary reinforced composite for enhanced strength and durability while remaining lightweight. Optimized for firearms with a factory A2 front sight base, the Scout Mount features a…
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AR AK Parts, Forward Assist / Dust Covers, Gun Parts, Upper Parts
Bastion Gear AR-15 Custom Laser Engraved Ejection Port Door Dust Cover Molon Labe Text Matte Black
$17.99A simple and cost effective upper receiver upgrade is an ejection port door dust cover. This particular unit from Bastion Gear offers you a custom laser engraved finish to…
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AR AK Parts, Gas Blocks, Gun Parts, Upper Parts
Anderson Manufacturing Low Profile Gas Block
$24.99Anderson Low Profile Gas Block assembly, made of 6061 Alum. Bore dia. is .750, designed to fit under Free Float Tube.
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