Home / Custom Builds / Custom Upper Builds / Custom .300 BLK Pinned & Welded AR-15 Rifle Upper 14.5″ – 16″ Custom .300 BLK Pinned & Welded AR-15 Rifle Upper 14.5″ – 16″$1,25000 3 Week Lead Time Made in the USAHandbuilt by NRC Industries, LLC FREE UPS/Fedex Ground Shipping Estimated shipping by May 14, 2024 Color OptionsSplit Cerakote No Yes ($40.00)$0.00Cerakote ColorTungstenMagpul FDEMagpul OD GreenNoveske Bazooka GreenVortex BronzeBurnt BronzeMidnight BronzeSniper GreyTactical GreyArmor BlackMetallic Coyote ($25.00)OD Gunmetal ($25.00)Dark Tungsten ($25.00)Black Metallic ($25.00)$0.00Upper Receiver Cerakote ColorTungstenMagpul FDEMagpul OD GreenNoveske Bazooka GreenVortex BronzeBurnt BronzeMidnight BronzeSniper GreyTactical GreyArmor BlackMetallic Coyote ($25.00)OD Gunmetal ($25.00)Dark Tungsten ($25.00)Black Metallic ($25.00)$0.00Handguard Cerakote ColorTungstenMagpul FDEMagpul OD GreenNoveske Bazooka GreenVortex BronzeBurnt BronzeMidnight BronzeSniper GreyTactical GreyArmor BlackMetallic Coyote ($25.00)OD Gunmetal ($25.00)Dark Tungsten ($25.00)Black Metallic ($25.00)$0.00OptionsUpper ReceiverWilson Combat ForgedGeissele Automatics Forged ($20.00)LMT Defense M4 Flattop ($140.00)SLR RIfleworks B15 Billet ($170.00)Willson Combat WC-15 Billet ($170.00)Willson Combat WC-15 Billet Lightweight ($170.00)$0.00Rifle Barrel Length14.5" (Pinned & Welded)16"14.5" Barrel OptionsBallistic Advantage Modern SeriesLantac Raven Black Nitride Stainless Steel ($70.00)Rainier Arms Match 416R Bead Blast Stainless Steel ($160.00)$0.0016" Barrel OptionsBallistic Advantage Modern SeriesBallistic Advantage Hanson Performance ($55.00)Lantac Raven Black Nitride Stainless Steel ($70.00)Wilson Combat 416R Bead Blast Stainless Steel ($120.00)Rainier Arms Match 416R Bead Blast Stainless Steel ($160.00)$0.00Handguard (14.5" Barrel)Wilson Combat M-LOK 12.6"Midwest Industries Combat Rail 12.6" ($55.00)BCM Gunfighter MCMR 13" ($55.00)SLR Rifleworks ION Lite 13.7" ($145.00)SLR Rifleworks SOLO Lite 13.7" ($145.00)Geissele Automatics MK8 13.5" ($155.00)Geissele Automatics MK14 13.5" ($155.00)Geissele Automatics MK16 13.5" ($185.00)$0.00Handguard (16" Barrel)Wilson Combat M-LOK 15"Midwest Industries Combat Rail 15" ($55.00)BCM Gunfighter MCMR 15" ($55.00)SLR Rifleworks ION Lite 15" ($145.00)SLR Rifleworks SOLO Lite 15" ($145.00)Geissele Automatics MK8 15" ($155.00)Geissele Automatics MK14 15" ($155.00)Geissele Automatics MK16 15" ($185.00)$0.00Bolt Carrier GroupToolcraft Black NitrideToolcraft Nickel Boron ($30.00)Toolcraft Titanium Nitride (Gold Colored) ($60.00)Wilson Combat Mil-Spec Phosphate ($60.00)Wilson Combat Black Nitride ($80.00)Wilson Combat Nickel Boron ($105.00)Noveske Mil-Spec ($80.00)Noveske Black Nitride ($120.00)Geissele Reliability Enhanced Nano ($215.00)$0.00Muzzle Device (14.5" Barrel)SilencerCo Flash Hider w/ ASR Suppressor MountSilencerCo Muzzle Brake w/ ASR Suppressor MountSons of Liberty NOX Flash Hider w/ KeyMo Suppressor Mount ($25.00)Dead Air Flash Hider w/ KeyMo Suppressor Mount ($25.00)Dead Air 3 Chamber Muzzle Brake w/ KeyMo Suppressor Mount ($25.00)OSS Huxwrx Flash Hider ($65.00)OSS Huxwrx Muzzle Brake ($70.00)Surefire SOCOM Flash Hider ($90.00)Surefire SOCOM Muzzle Brake ($90.00)Surefire SOCOM Warcomp Flash Hider 3 Prong ($90.00)Surefire SOCOM Warcomp Flash Hider Closed Tine ($90.00)$0.00Muzzle Device (16" Barrel)A2 Birdcage Flash HiderSilencerCo Flash Hider w/ ASR Suppressor MountSilencerCo Muzzle Brake w/ ASR Suppressor MountSons of Liberty NOX Flash Hider w/ KeyMo Suppressor Mount ($25.00)Dead Air Flash Hider w/ KeyMo Suppressor Mount ($25.00)Dead Air 3 Chamber Muzzle Brake w/ KeyMo Suppressor Mount ($25.00)OSS Huxwrx Flash Hider ($65.00)OSS Huxwrx Muzzle Brake ($70.00)Surefire SOCOM Flash Hider ($90.00)Surefire SOCOM Muzzle Brake ($90.00)Surefire SOCOM Warcomp Flash Hider 3 Prong ($90.00)Surefire SOCOM Warcomp Flash Hider Closed Tine ($90.00)Q Cherry Bomb ($40.00)$0.00Gas SystemLow Profile Non-AdjustableAero Precision Adjustable ($40.00)Q Honey Badger Adjustable ($70.00)Superlative Arms Bleed-Off Adjustable ($75.00)$0.00Charging HandleMil-SpecRadian Raptor Ambidextrous ($55.00)Radian Raptor Ambidextrous FDE ($55.00)Radian Raptor Ambidextrous OD Green ($55.00)Radian Raptor SD Ambidextrous ($95.00)Radian Raptor SD Ambidextrous FDE ($95.00)Radian Raptor SD Ambidextrous OD Green ($95.00)Geissele Automatics Ambidextrous ($75.00)Geissele Automatics Ambidextrous DDC (Tan Anodized) ($85.00)$0.00OpticsRed Dot / Holographic SightsSig Sauer Romeo5 2MOA Red Dot ($140.00)Sig Sauer MSR Red Dot & 3X Combo ($260.00)Holoson 403C 2MOA Red Dot ($160.00)Holoson 510C 2MOA Red Dot ($285.00)Holosun AEMS 2MOA Red Dot ($290.00)Trijicon MRO Full Co-Witness 2MOA Red Dot ($450.00)Trijicon MRO Full Co-Witness 2MOA Green Dot ($480.00)EOTECH 512 1 MOA Dot w/ 68 MOA Ring ($430.00)EOTECH EXPS2-0 1 MOA Dot w/ 68 MOA Ring ($540.00)EOTECH EXPS2-0 1 MOA Green Dot w/ 68 MOA Ring ($640.00)EOTECH EXPS2-0 Tan 1 MOA Dot w/ 68 MOA Ring ($600.00)EOTECH EXPS3-0 1 MOA Dot w/ 68 MOA Ring & NV Reticle ($675.00)$0.00MagnifiersSig Sauer Juliet3 Micro 3X ($200.00)Holosun HM3X ($190.00)Trijicon MRO HD 3X ($385.00)Eotech G33 3X ($540.00)Eotech G33 3X Tan ($540.00)Eotech G45 5X ($615.00)EOTECH G45 5X Tan ($615.00)$0.00ScopesGeissele SPR 1-6x26 DMRR-1 ($900.00)Sig Sauer MSR 1-10X26mm Coyote Brown BDC10 Reticle ($680.00)Trijicon Credo HX 1-6x24 SFP Red BDC ($850.00)Trijicon Credo HX 1-6x24 FFP Red MOA ($945.00)Trijicon ACOG 4X32 Red Chevron ($1,050.00)Trijicon HX Tenmile 6-24X50 SFP MOA Red ($1,025.00)Sig Sauer TANGO6T 1-6X24mm Tan, FFP DWLR-556 Reticle ($2,075.00)EOTECH VUDU 1-8X34mm HC3 MOA Reticle ($1,140.00)Steiner T6Xi 1-6x24mm FFP KC-1 Reticle ($1,545.00)$0.00Tactical AccessoriesTactical AccessoriesPhase 5 M-LOK Handstop ($32.00)Slate Grip Rail Covers ($16.00)Magpul MS4 Dual QD Sling ($60.00)KRISS USA Steel Backup Iron Sights ($120.00)Surefire M340C Scout Pro 500 Lumen ($290.00)Surefire M640U Scout Pro 1000 Lumen ($290.00)Surefire M640V Scout Pro IR & White ($420.00)Surefire Tailcap & Pressure Pad ($150.00)Harris 6-9" Bipod & MLOK Mount ($145.00)ADM Quick Release 30mm Scope Mount ($225.00)Midwest Industries 30mm Scope Mount ($140.00)Holosun Dual Laser Sight - Green & IR ($525.00)Surefire Warden Blast Regulator - Black ($220.00)Surefire Warden Blast Regulator - FDE ($220.00)$0.00State ComplianceDoes your state require comliance modifications? Yes NoStateCaliforniaNew YorkNew JerseyMarylandCaliforniaJuggernaut Tactical Takedown Pins ($65.00)Compmag Gen3 Fixed Magazine ($65.00)$0.00New YorkCompmag Gen3 Fixed Magazine (Epoxy Sealed) ($65.00)$0.00New JerseySwap to Pinned & Welded Muzzle Brake - Please contact us for exact pricing$0.00MarylandSwap to HBAR Barrel (Not Applicable to .300 BLK) - Please contact us for exact pricing$0.00 Options Price: $0.00 Product Price: $1,250.00 Total: $0.00 Custom .300 BLK Pinned & Welded AR-15 Rifle Upper 14.5" - 16" quantity Add to cart SKU: CUSTOM-300-BLK-RIFLE-UPPER Categories: Custom Builds, Custom Upper Builds Tags: .300 BLK, 14.5", 16", 300 Blackout, AR-15, BCM, Custom Pinned & Welded, Geissele, Midwest Industries, MK14, MK8, Wilson Combat Product ID: 6146 Additional information Additional information Caliber .300 Blackout / 300 BLK / 7.62x35mm Related products Spike’s Tactical DTOM – .300 BLK – Dark Tungsten – 16″ Wilson Combat – .300 BLK – OD Gunmetal – 10.3″ PDW Pistol Sons of Liberty Gun Works – 5.56 NATO – OD Green & FDE – 11.3″ Pistol $2,21000