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Daniel Defense AR-15 Uppers, Stocks, Iron Sights, BCGs & Other Firearm Parts and Accessories — 131 products / 218 models

Daniel Defense was founded with the goal of creating a more functional and easier-to-use AR platform. Passionate about quality control and preventing low production levels, DD has spent over 25 years setting the benchmark for achievement in a competitive market. This commitment has led to the development of rugged and reliable AR-15 parts, including AR stock kits and rifle chassis, complete upper receivers, snag-free iron sights, and other gun parts that have been closely examined down to every detail with clearly marked settings and consistent coloring.image

Shop online at OpticsPlanet for the best deals on Daniel Defense MK18 uppers, M4A1 tactical rails, Delta 5 Pro chassis systems, and other high-quality firearm parts from top-rated brands. If you own a Daniel Defense firearm and need compatible accessories or ammo, find your firearm model below and start upgrading your build. Make sure to check out our How-to Guides for tips on buying the best AR upper receiver, AR-15 iron sights, and bolt carrier group for your exact firearm and needs. Gear up with us today and get Free Shipping on most orders over $49.

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Image of Gun Parts category Gun Parts
Image of Rifle Parts category Rifle Parts
Image of AR 15 Parts category AR 15 Parts
Image of AR15 Accessories category AR15 Accessories
Image of AR15 Upper Parts category AR15 Upper Parts
Image of AR15 Stocks category AR15 Stocks
Image of AR15 Lower Parts category AR15 Lower Parts
Image of AR15 Upper Receivers category AR15 Upper Receivers
Image of Weapon Accessories category Weapon Accessories
Image of AR 15 Tactical Rails category AR 15 Tactical Rails
Image of AR Handguards & Forends category AR Handguards & Forends
Image of Rifle Barrels category Rifle Barrels
Image of AR15 Barrels category AR15 Barrels
Image of AR15 Pistol Grips category AR15 Pistol Grips
Image of AR15 Iron Sights category AR15 Iron Sights
Image of Bolt Carrier Groups category Bolt Carrier Groups
Image of AR15 Front Grips category AR15 Front Grips
Image of Gun Support Grips category Gun Support Grips
Image of Vertical Foregrips category Vertical Foregrips
Image of Rifle Stocks category Rifle Stocks

131 Products in Daniel Defense

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Image of Daniel Defense Bolt Carrier Group (BCG) Complete 5.56mm NATO Daniel Defense Bolt Carrier Group (BCG) Complete 5.56mm NATO (46) List: $265.00 (Save $18.00) $247.00 Best Rated
Image of Daniel Defense A1.5 Top Mounted Fixed Iron Sight Daniel Defense A1.5 Top Mounted Fixed Iron Sight (136) List: $170.00 (Save $14.00) $156.00 Best Rated
Image of Daniel Defense Collapsible Buttstock 3 models Daniel Defense Collapsible Buttstock (151) List: $96.00 (Save $8.00) $88.00 Best Rated
Image of Daniel Defense MK18, URG, 10.3in 5.56 Complete Upper Receiver w/ Flash Hider 2 models Daniel Defense MK18, URG, 10.3in 5.56 Complete Upper Receiver w/ Flash Hider (38) List: $1,641.00 (Save $114.00) $1,527.00 Best Rated
Image of Daniel Defense DDM4 V7 S 11.5in 5.56 Complete Upper Receiver w/ Flash Hider 2 models Daniel Defense DDM4 V7 S 11.5in 5.56 Complete Upper Receiver w/ Flash Hider (20) As Low As (Save Up to 25%) $1,029.00 Clearance
Image of OpticsPlanet Exclusive Daniel Defense Custom Upper Receiver 2 models OpticsPlanet Exclusive Daniel Defense Custom Upper Receiver (103) As Low As (Save Up to 31%) $902.49 Blazin' Deal
Image of Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly 3 models Daniel Defense DD4 RIIIS URG 11.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly (15) As Low As (Save Up to 16%) $1,379.00 Best Rated
Image of Daniel Defense DDM4 V7 16 inch 5.56mm NATO Upper Receiver Daniel Defense DDM4 V7 16 inch 5.56mm NATO Upper Receiver (14) List: $1,379.00 (Save $98.00) $1,281.00 Best Rated
Image of Daniel Defense DDM4 300 S, URG, 10.3in, 300 AAC Blackout Complete Upper Receiver w/ Flash Hider Daniel Defense DDM4 300 S, URG, 10.3in, 300 AAC Blackout Complete Upper Receiver w/ Flash Hider (16) List: $1,571.00 (Save $109.00) $1,462.00 Best Rated
Image of Daniel Defense Overmolded Pistol Grip 3 models Daniel Defense Overmolded Pistol Grip (54) As Low As (Save Up to $4.00) $39.99 Best Rated
Image of Daniel Defense M-LOK Vertical Foregrip 4 models Daniel Defense M-LOK Vertical Foregrip (56) As Low As (Save Up to 29%) $34.99 Best Rated
Image of Daniel Defense Grenade Launcher/Sound Suppressor Capable 5.56mm 12.5 inch Upper Receiver Daniel Defense Grenade Launcher/Sound Suppressor Capable 5.56mm 12.5 inch Upper Receiver List: $1,641.00 (Save 10%) $1,476.00
Image of Daniel Defense M4A1 14.5 in Barrel 5.56mm NATO Upper Receiver Group 2 models Daniel Defense M4A1 14.5 in Barrel 5.56mm NATO Upper Receiver Group (7) As Low As (Save Up to 16%) $1,459.00 Best Rated
Image of Daniel Defense Delta 5 Pro Chassis System Daniel Defense Delta 5 Pro Chassis System List: $1,364.00 (Save $95.00) $1,269.00
Image of Daniel Defense AR-15 Furniture Kit M-Lok Mil-Spec MSP Daniel Defense AR-15 Furniture Kit M-Lok Mil-Spec MSP (14) List: $165.00 (Save $14.00) $151.00 Best Rated
Image of Daniel Defense MK18 RIII URG 10.3 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly 2 models Daniel Defense MK18 RIII URG 10.3 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly (4) List: $1,641.00 (Save $114.00) $1,527.00
Image of Daniel Defense Rail Interface System Ris III 7 models Daniel Defense Rail Interface System Ris III (10) As Low As (Save Up to 11%) $516.00 Free 2 Day Shipping
Image of Daniel Defense Assy 5.56mm NATO Threaded Barrel 8 models Daniel Defense Assy 5.56mm NATO Threaded Barrel (20) As Low As (Save Up to $33.00) $365.00 Free 2 Day Shipping
Image of Daniel Defense AR-15 Lower Receiver Parts Kit, Semi-Auto Daniel Defense AR-15 Lower Receiver Parts Kit, Semi-Auto (32) List: $138.00 (Save $10.00) $128.00 Best Rated
Image of Daniel Defense M4A1 FSP Rail Interface System RIS II 3 models Daniel Defense M4A1 FSP Rail Interface System RIS II (6) As Low As (Save Up to 24%) $369.99 Clearance
Image of Daniel Defense M4A1 FSP 14.5in 5.56 Nato Upper Receiver Group Daniel Defense M4A1 FSP 14.5in 5.56 Nato Upper Receiver Group (7) List: $1,751.00 (Save $122.00) $1,629.00 Best Rated
Image of Daniel Defense MK18 Rail Interface System II, RIS II 2 models Daniel Defense MK18 Rail Interface System II, RIS II (8) List: $582.00 (Save $40.00) $542.00 Free 2 Day Shipping
Image of Daniel Defense Buttstock, Pistol Grip & M-LOK Vertical Foregrip Combo 2 models Daniel Defense Buttstock, Pistol Grip & M-LOK Vertical Foregrip Combo (17) List: $165.00 (Save $14.00) $151.00 Best Rated
Image of Daniel Defense Grip-N-Rip AR-15 Ambidextrous Charging Handle Daniel Defense Grip-N-Rip AR-15 Ambidextrous Charging Handle (13) List: $125.00 (Save $8.00) $117.00 Best Rated
Image of Daniel Defense M4A1 Rail Interface System RIS II 2 models Daniel Defense M4A1 Rail Interface System RIS II (8) List: $582.00 (Save $40.00) $542.00 Free 2 Day Shipping
Image of Daniel Defense MK12 Upper Receiver Group 18in Daniel Defense MK12 Upper Receiver Group 18in (4) List: $1,898.00 (Save $133.00) $1,765.00
Image of Daniel Defense AR-15/M4/M16 5.56mm 32 Round Rifle Magazine 2 models Daniel Defense AR-15/M4/M16 5.56mm 32 Round Rifle Magazine (2) As Low As (Save Up to 35%) $33.99
Image of Daniel Defense Rifle Barrel Assembly, 5.56mm NATO, 1:7 Twist, GOV/MID 5 models Daniel Defense Rifle Barrel Assembly, 5.56mm NATO, 1:7 Twist, GOV/MID (12) As Low As (Save Up to $33.00) $365.00 Free 2 Day Shipping
Image of Daniel Defense DDM4 V7 Pro 18in 5.56 Upper Receiver Daniel Defense DDM4 V7 Pro 18in 5.56 Upper Receiver (4) List: $1,785.00 (Save $126.00) $1,659.00
Image of Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube Daniel Defense Receiver Extension 6 Position Rifle Buffer Tube (15) List: $49.00 (Save $1.01) $47.99 Best Rated
Image of Daniel Defense Rifle Barrel Assembly, 5.56mm NATO, 1:7 Twist, M4/CAR 7 models Daniel Defense Rifle Barrel Assembly, 5.56mm NATO, 1:7 Twist, M4/CAR (2) As Low As (Save Up to 16%) $365.00 Free 2 Day Shipping
Image of Daniel Defense Rail Interface System Ris III FSP 2 models Daniel Defense Rail Interface System Ris III FSP List: $582.00 (Save $40.00) $542.00 Free 2 Day Shipping
Image of Daniel Defense Rail Mount QD Swivel Attachment Point With Heavy Duty QD Sling Swivel DD-7101-S Daniel Defense Rail Mount QD Swivel Attachment Point With Heavy Duty QD Sling Swivel DD-7101-S (22) List: $57.00 (Save $1.01) $55.99 Best Rated
Image of Daniel Defense AR-15 Omega Rail 2 models Daniel Defense AR-15 Omega Rail (26) As Low As (Save Up to $20.00) $251.00 Free 2 Day Shipping
Image of Daniel Defense AR Bolt Assembly 5.56 NATO / 300 Blackout Daniel Defense AR Bolt Assembly 5.56 NATO / 300 Blackout (9) List: $95.00 (Save $8.00) $87.00 Best Rated
Image of Daniel Defense Rail Mount Fixed Front Sight Daniel Defense Rail Mount Fixed Front Sight (22) List: $86.00 (Save $5.00) $81.00 Best Rated
Image of Daniel Defense Rifle Barrel Assembly, 5.56mm NATO, 1:7 Twist, S2W 2 models Daniel Defense Rifle Barrel Assembly, 5.56mm NATO, 1:7 Twist, S2W (5) List: $394.00 (Save $29.00) $365.00 Free 2 Day Shipping
Image of Daniel Defense A1-5 Fixed Rear Sight DD-11002 Daniel Defense A1-5 Fixed Rear Sight DD-11002 (22) List: $118.00 (Save $8.00) $110.00 Best Rated
Image of Daniel Defense Buttstock/Pistol Grip/Vertical Foregrip Combo Picatinny 3 models Daniel Defense Buttstock/Pistol Grip/Vertical Foregrip Combo Picatinny (54) List: $156.00 (Save $9.00) $147.00 Best Rated
Image of Daniel Defense Castle Nut Daniel Defense Castle Nut (28) List: $15.99 (Save 56%) $7.00 Blazin' Deal
Image of Daniel Defense Omega Rail 9.0 M-LOK Daniel Defense Omega Rail 9.0 M-LOK (1) List: $297.00 (Save $20.00) $277.00 Free 2 Day Shipping
Image of Daniel Defense DD4 RIII URG 16 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly 2 models Daniel Defense DD4 RIII URG 16 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly (4) List: $1,743.00 (Save $122.00) $1,621.00
Image of Daniel Defense DDM4V7 LW, URG, LW, 5.56mm, 1/7, LPG, MFR XS M-LOK Rail 15.0, DDFH Complete Upper Receiver w/ Flash Hider, 16in Daniel Defense DDM4V7 LW, URG, LW, 5.56mm, 1/7, LPG, MFR XS M-LOK Rail 15.0, DDFH Complete Upper Receiver w/ Flash Hider, 16in (21) List: $1,379.00 $1,281.00 Best Rated
Image of Daniel Defense MFR XS Rail Systems 5 models Daniel Defense MFR XS Rail Systems (12) As Low As (Save Up to 16%) $305.99 Free 2 Day Shipping
Image of Daniel Defense M4A1 RIII URG 14.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly 2 models Daniel Defense M4A1 RIII URG 14.5 inch 5.56x45mm NATO Upper Receiver with Flash Hider Assembly (3) List: $1,743.00 (Save $122.00) $1,621.00
Image of Daniel Defense DD M4 Rail 4 models Daniel Defense DD M4 Rail (11) As Low As (Save Up to $37.00) $462.00 Best Rated
Image of Daniel Defense Otis M4 Cleaning Kit Daniel Defense Otis M4 Cleaning Kit (4) List: $76.00 (Save $6.00) $70.00
Image of Daniel Defense MFR XL Rail Systems 4 models Daniel Defense MFR XL Rail Systems (11) As Low As (Save Up to $27.00) $340.00 Free 2 Day Shipping
Image of Daniel Defense Rifle Barrel Assembly, 5.56mm NATO, 1:7 Twist, LightWeight/MID 3 models Daniel Defense Rifle Barrel Assembly, 5.56mm NATO, 1:7 Twist, LightWeight/MID (9) As Low As (Save Up to $33.00) $365.00 Best Rated
Image of Daniel Defense AR Rifle Rear Reciever QD Attachment Point W/Swivel Daniel Defense AR Rifle Rear Reciever QD Attachment Point W/Swivel List: $67.00 (Save $4.00) $63.00
Image of Daniel Defense Vertical Foregrip With Soft Touch Rubber Overmolding 3 models Daniel Defense Vertical Foregrip With Soft Touch Rubber Overmolding (32) As Low As (Save Up to 37%) $39.99 Best Rated
Image of Daniel Defense Daniel H9 9mm 19 Rounds Rifle Magazine Daniel Defense Daniel H9 9mm 19 Rounds Rifle Magazine (1) List: $50.00 (Save 32%) $33.99
Image of Daniel Defense Delta 5 Reaction Rod Daniel Defense Delta 5 Reaction Rod List: $82.00 (Save 15%) $69.99 Blazin' Deal
Image of Daniel Defense Picatinny Rail Panel Set Daniel Defense Picatinny Rail Panel Set (9) List: $51.00 (Save 14%) $43.99 Best Rated
Image of Daniel Defense Flash Suppressor Assembly 4 models Daniel Defense Flash Suppressor Assembly (6) As Low As (Save Up to 17%) $59.99 Clearance
Image of Daniel Defense Pistol Grip With Oversized Trigger Guard 3 models Daniel Defense Pistol Grip With Oversized Trigger Guard (52) As Low As (Save Up to 27%) $39.99 Best Rated
Image of Daniel Defense DDWave Muzzle Brake 2 models Daniel Defense DDWave Muzzle Brake (2) List: $175.00 (Save $11.00) $164.00
Image of Daniel Defense Micro Mount, Rock & Lock Daniel Defense Micro Mount, Rock & Lock (9) List: $118.00 (Save $8.00) $110.00 Best Rated
Image of Daniel Defense M-LOK Bipod Adapter Daniel Defense M-LOK Bipod Adapter List: $66.00 (Save $4.00) $62.00
Image of Daniel Defense AR Top Mounted Fixed Gas Block Iron Sight with Bayonet Lug Daniel Defense AR Top Mounted Fixed Gas Block Iron Sight with Bayonet Lug (2) List: $56.00 $55.99
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    Last updated 2026-09-27 UTC.