5.56x45mm Diamondback Guns for Sale

Price History
5.56x45mm
Diamondback
DBF CARBON DB15 5.56 16 MLOK 15 30RD
New
UPC 810035755406 Free Shipping > $500
$437.99 Cummings Family Firearms ★★★★★ (52)
Diamondback DB15 Carbon Series 5.56 NATO 16" 15" M-LOK Rifle, Black
New
UPC 810035755406 Shipping $17.81
$448.04 Deerford Defense

5.56x45mm Diamondback Guns Price Graph

Today's 5.56x45mm Diamondback Guns average is $499.92, 7% below the 180-day average of $538.51. Over the last 180 days, the average peaked at $670.32 on April 15, 2026 and bottomed at $495.55 on August 24, 2026.

Diamondback DB15 5.56 NATO AR-15 Rifle – 16" M-LOK Rail
New
UPC 810035755406 Free Shipping > $1,250
$448.59 Nadir Solutions ★★★★★ (18)
DIAMONDBACK DB15 5.56 - Diamondback Firearms DB15 5.56 NATO with one 30 round magazine. Hand guard does have a few scuffs otherwise in great shape.
Used
Shipping $20
$449.99 Guns.com ★★★★★ (38,455)
DIAMONDBACK DB15 RIFLE - DIAMONDBACK FIREARMS MODEL DB15 RIFLE Notes: DIAMONDBACK FIREARMS MODEL DB15 RIFLE BLACK (MATTE) CASE / MAG NOT INCLUDED SEMI - AUTOMATIC 5.56 NATO 16" - BJB (49948)
Used
Shipping $20
$449.99 Guns.com ★★★★★ (38,455)
Diamondback DB15 5.56 NATO AR-15 Rifle, 16" Barrel
New
UPC 810035755406
$455.99 Good 4 Guns ★★★★★ (276)
Diamondback DB15 Carbon 5.56 NATO 16in 15in M-LOK 30rd Black
New
UPC 810035755406
$456.86 Georgia Guns & Ammo ★★★★★ (2)
DB15 5.56 16" Blk 15" M-Lok Rail 2-30Rd
New
UPC 810035755406
$457.00 CLB Guns ★★★★★ (45)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 Shipping $20
$458.99 Down Range Firearms ★★★★★ (8)
DB15 5.56 16" Blk 15" M-Lok Rail 2-30Rd
New
UPC 810035755406
$459.99 Allied Arms ★★★★★ (310)

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DBF DB15 5.56 16 MLOK 15 30RD
New
UPC 810035755406
$461.36 Gun Wise
DBF DB15 5.56 16" MLOK MOE 30RD BLK
New
UPC 810035755406
$464.47 De Leon RX & Sporting Goods ★★★★★ (216)
DBF DB15 5.56 16 MLOK 15 30RD
New
UPC 810035755406 Shipping $20
$464.99 DK Gun & Dog ★★★★★ (56)
DB15 5.56 16" Blk 15" M-Lok Rail 2-30Rd
New
UPC 810035755406
$465.00 Armored Boar Gunworks ★★★★★ (53)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 CC Fee 3%
$465.99 Cornerstone Arms ★★★★★ (373)
DB15 5.56 16" Blk 15" CO M-Lok Rail 1-10Rd
New
UPC 810035755932 Free Shipping > $500
$467.99 Cummings Family Firearms ★★★★★ (52)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 Free Shipping > $900 CC Fee 3% $10 Off Code CALIBERKING
$471.28 Armed in Michigan ★★★★★ (714)
Diamondback DB15 5.56 NATO 16in 30+1 15in M-LOK
New
UPC 810035755406 Shipping $13 Free Shipping > $500
$471.74 Axolotl Arms ★★★★★ (126)
Diamondback DB15 Rifle 5.56 NATO 30rd Mag 16" 1/2x28 Threaded Barrel Black
New
UPC 810035755406 CC Fee 6%
$475.86 All Things Firearm ★★★★★ (3)
Diamondback DB15 5.56x45mm NATO 16in 30rd Finish Hardcoat Anodized
New
UPC 810035755406 Free Shipping > $500
$475.99 Shooting Surplus ★★★★★ (193)
Diamondback DB1717K005 DB15 5.56x45mm NATO 30+1 16", Black, Magpul Carbine Stock & MOE Grip, 15" M-Lok Handgaurd
New
UPC 810035755406
$480.41 Ecommerce Arms
DIAMONDBACK DB15 - SEMI AUTO 5.56NATO WITH ONE MAG AND TRUGLO OPTIC IN USED CONDITION.
Used
Shipping $20
$480.99 Guns.com ★★★★★ (38,455)
DB15 5.56 16" Blk 15" CO M-Lok Rail 1-10Rd
New
UPC 810035755932 Free Shipping > $1,250
$483.58 Nadir Solutions ★★★★★ (18)
DB15 Extended Line 5.56 NATO 16'' BBL
New
UPC 810035755406
$484.20 Patriotic Firearms
Diamondback DB1717K005 DB15 5.56x45mm NATO 30+1 16", Black, Magpul Carbine Stock & MOE Grip, 15" M-Lok Handgaurd
New
UPC 810035755406 Free Shipping
$484.99 Canoe Creek Armory ★★★★★ (17)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406
$487.21 Vital Defense ★★★★★ (14)
Diamondback DB15 CO Compliant 5.56 NATO 10+1 16" Rifle
New
UPC 810035755932
$487.99 Good 4 Guns ★★★★★ (276)
Diamondback DB15 CO-Complaint 5.56 NATO 16" 15" M-LOK 10rd
New
UPC 810035755932
$488.10 Georgia Guns & Ammo ★★★★★ (2)
Diamondback DB15 Rifle - 5.56 NATO, 16in Barrel, 15in M-LOK
New
UPC 810035755406
$488.12 Ferrari Firearms
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 Shipping $20 Free Shipping > $1,000
$488.74 Life2A ★★★★★ (3)
DB15 5.56 16" Blk 15" CO M-Lok Rail 1-10Rd
New
UPC 810035755932
$489.00 CLB Guns ★★★★★ (45)
DIAMONDBK DB15 5.56 16" RFL 15" MLOK RL 30RD
New
UPC 810035755406 Free Shipping
$489.89 Caliber Exchange ★★★★★ (1)
DB15 5.56 16" Blk 15" CO M-Lok Rail 1-10Rd
New
UPC 810035755932 Shipping $20
$490.37 Down Range Firearms ★★★★★ (8)
Diamondback DB15 Rifle 5.56 NATO 30rd Mag 16" 1/2x28 Threaded Barrel Black
New
UPC 810035755406
$490.38 MCM Tactical ★★★★★ (60)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 Free Shipping > $700
$492.72 Safe Haven Defense
DB DB15 5.56 16 BLK 10RD CO
New
UPC 810035755932 Shipping $20
$494.05 DK Gun & Dog ★★★★★ (56)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406
$494.99 Get Guns N Ammo
DB DB15 5.56 16 BLK 10RD CO
New
UPC 810035755932
$496.23 De Leon RX & Sporting Goods ★★★★★ (216)
DB15 5.56 16" Blk 15" CO M-Lok Rail 1-10Rd
New
UPC 810035755932
$497.00 Armored Boar Gunworks ★★★★★ (53)
DIAMONDBK DB15 5.56 16" RFL 15" MLOK RL 30RD
New
UPC 810035755406 Shipping $20
$497.16 Custom Creatives Group ★★★★★ (24)
DIAMONDBK DB15 5.56 16" RFL 15" MLOK RL 30RD
New
UPC 810035755406
$497.16 Pickett's Mill Armory ★★★★★ (26)
Diamondback DB1799K005 DB15 *CO Compliant 5.56 NATO 10+1 16" Black Nitride Barrel, Black Anodized Aluminum Receiver w/Picatinny Rail, M-LOK Handguard, Black Synthetic Stock
New
UPC 810035755932 CC Fee 3%
$498.99 Cornerstone Arms ★★★★★ (373)
DB DB15 5.56 16 BLK 10RD CO
New
UPC 810035755932
$499.05 Gun Wise
DIAMONDBACK DB15 - Manufacturer: Diamond BackImporter: Diamond BackModel: DB15Type: RifleAction Type: Semi-AutomaticCaliber / Gauge: 5.56 x 45 MM natoFinish: AnodizedBarrel Type: SingleGrip Type: PolymerBarrel Length: 16"Magazine Capacity: 30-39Magazine Quantity: 1Case Typ...
Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
DIAMONDBACK DB-15 - Manufacturer: Diamond BackImporter: Diamond BackModel: DB-15Type: RifleAction Type: Semi-AutomaticCaliber / Gauge: 5.56 x 45 MM natoFinish: BlackBarrel Type: SingleGrip Type: PolymerBarrel Length: 16"Magazine Capacity: 30-39Magazine Quantity: 1Case Type...
Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
DIAMONDBACK DB15- Pistol - Manufacturer: Diamond BackImporter: Diamond BackModel: DB15- PistolType: HandgunAction Type: Semi-AutomaticCaliber / Gauge: .223 / 5.56 NatoFinish: BlackBarrel Type: SingleGrip Type: SyntheticBarrel Length: 10"Magazine Capacity: 30-39Case Type: N...
Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
DIAMONDBACK DB15 RIFLE - DIAMONDBACK FIREARMS MODEL DB15 RIFLE. SERIAL NUMBER DB3229843. BLACK (MATTE), CASE NOT INCLUDED. ONE MAG. 16.1" BARREL, 5.56 NATO, SEMI - AUTOMATIC ACTION Notes: HEY, CHECK OUT THIS DIAMONDBACK FIREARMS MODEL DB15 RIFLE. SERIAL NUMBER DB3229843. ...
Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
DIAMONDBACK DB-15 - RIFLE: DIAMONDBACK FIREARMS MODEL DB-15, SERIAL NUMBER DB1533846, BLACK (MATTE), YES - INCLUDES PROTECTIVE CASE, SEMI - AUTOMATIC, 5.56 NATO, 16" BARREL, USED BUT IN GREAT CONDITION Notes: DIAMONDBACK FIREARMS DB-15 5.56 INCLUDES A 30 ROUND MAG AND A R...
Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
DIAMONDBACK DB15 RIFLE - RIFLE: DIAMONDBACK FIREARMS MODEL DB15 RIFLE, SERIAL NUMBER DB1738811, BLACK (MATTE), CASE NOT INCLUDED, SEMI - AUTOMATIC, 5.56 NATO, 16 Notes: RIFLE: DIAMONDBACK FIREARMS MODEL DB15 RIFLE, SERIAL NUMBER DB1738811, BLACK (MATTE), CASE NOT INCLUDED...
Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
DIAMONDBACK DB15 RIFLE - RIFLE: DIAMONDBACK FIREARMS MODEL DB15 RIFLE, SERIAL NUMBER DB2035796, BLUE / CCH, NOT INCLUDED, SEMI - AUTOMATIC, 5.56 NATO, 16" Notes: Diamondback Firearms DB15 5.56 NATO rifle comes with one magazine. 16" Barrel 1/8 Twist
Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
DIAMONDBACK DB15 - Sellers Description Diamondback DB15 5.56 Nato semi-Auto Rifle In Very good condition, Action and trigger are smooth, Safety functions properly, Comes with one mag, Has adjustable stock, Has Magpul MVG vertical grip, Has magpul grip, Has tacticon flip up...
Used
Shipping $20
$499.99 Guns.com ★★★★★ (38,455)
Diamondback DB15 Rifle 5.56 NATO 30rd Mag 16" 1/2x28 Threaded Barrel Black
New
UPC 810035755406 Shipping $19 Free Shipping > $750
$501.27 Riddle Firearms
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 Free Shipping
$501.68 Timber Hole Outdoors ★★★★★ (5)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 $5 Off - Use Code CALIBERKING
$502.66 Gun Place ★★★★★ (206)
DB15 5.56 16" Blk 15" M-Lok Rail 2-30Rd
New
UPC 810035755406 Free Shipping > $1,000 CC Fee 3%
$503.61 Bunker Hill Ballistics ★★★★★ (9)
Diamondback DB15 .223/5.56 NATO 16" 10+1 CO Compliant
New
UPC 810035755932 Free Shipping
$504.00 Axolotl Arms ★★★★★ (126)
Diamondback DB15 Carbon Series DB1799K005 Rifle 5.56 NATO 16" Barrel 10+1 Semi-Auto 15" M-LOK Rail, MOE Stock.
New
UPC 810035755932 Shipping $18
$504.50 Classic Firearms ★★★★★ (2,454)
Diamondback DB15 Carbon 5.56 NATO 16in AR-15 Rifle, 15in M-LOK, Black
New
UPC 810035755406 Shipping $10
$504.99 Alexander's Store ★★★★★ (1,532)
Diamondback DB1717K005 DB15 5.56x45mm NATO 30+1 16", Black, Magpul Carbine Stock & MOE Grip, 15" M-Lok Handgaurd
New
UPC 810035755406 Shipping $18
$506.20 Sharp's Shooting Supply ★★★★★ (34)
DIAMONDBK DB15 5.56 16" RFL 15" MLOK RL 30RD
New
UPC 810035755406
$508.00 Birmingham Hill Armory ★★★★★ (16)
Diamondback DB15 Carbon Series 5.56 NATO 16in 10rd Gray Finish
New
UPC 810035755932 Free Shipping
$508.54 Shooting Surplus ★★★★★ (193)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406
$510.18 Redsand Tactical
DB15 5.56 NATO 16'' BBL (1)10RD MAG BLACK CO COMPLIANT
New
UPC 810035755932
$510.33 Ecommerce Arms
DBF DB15 5.56 16" MLOK MOE 30RD BLK
New
UPC 810035755406 Shipping $20 Free Shipping > $1,000
$512.62 Dave's Guns ★★★★★ (28)
Diamondback DB15 AR Rifle - Black | 5.56NATO | 16" Barrel | 15" M-LOK Rail | A2 Flash Hider
New
UPC 810035755406 Shipping $16
$512.99 Riflenetics ★★★★★ (65)
Diamondback DB15 5.56 16" Blk 15" M-Lok Rail 2-30Rd
New
UPC 810035755406 Free Shipping
$514.98 BuyAGun ★★★★★ (3)
DIAMONDBK DB15 5.56 16" RFL 15" MLOK RL 30RD
New
UPC 810035755406 Shipping $15
$515.99 Extreme Products ★★★★★ (83)
DB15 5.56 NATO 16'' BBL (1)10RD MAG BLACK CO COMPLIANT
New
UPC 810035755932 Free Shipping > $900 CC Fee 3% $10 Off Code CALIBERKING
$517.91 Armed in Michigan ★★★★★ (714)
DB15 5.56 16" Blk 15" CO M-Lok Rail 1-10Rd
New
UPC 810035755932 Free Shipping
$517.99 Canoe Creek Armory ★★★★★ (17)
Diamondback DB15C 5.56 NATO Rifle - 16" Barrel, 10-Round
New
UPC 810035755925
$517.99 Good 4 Guns ★★★★★ (276)
DB15 5.56 16" Blk 15" M-Lok Rail 2-30Rd
New
UPC 810035755406 Free Shipping
$518.99 Timberlake Firearms ★★★★★ (11)
Diamondback DB15 AR Rifle - Black | 5.56NATO | 16" Barrel | 15" M-LOK Rail | A2 Flash Hider
New
UPC 810035755406 Free Shipping CC Fee 3%
$519.75 Minutemen Defense ★★★★★ (54)
Diamondback DB1717K005 DB15 5.56x45mm NATO 30+1 16", Black, Magpul Carbine Stock & MOE Grip, 15" M-Lok Handgaurd
New
UPC 810035755406 Shipping $20
$519.75 JB Armament ★★★★★ (126)
Diamondback DB15 5.56 NATO 16" 15" M-LOK 30rd
New
UPC 810035755406 Shipping $15
$519.99 AZ Arms Depot ★★★★★ (229)
DIAMONDBK DB15 5.56 16" RFL 15" MLOK RL 30RD
New
UPC 810035755406
$519.99 Big Bee Bee ★★★★★ (11)
Diamondback DB15 Rifle 5.56 NATO 30rd Mag 16" 1/2x28 Threaded Barrel Black
New
UPC 810035755406
$521.99 Pathfinder Militaria ★★★★★ (106)
DB15 5.56 16" Blk 15" CO M-Lok Rail 1-10Rd
New
UPC 810035755932 Shipping $20 Free Shipping > $1,000
$522.16 Life2A ★★★★★ (3)
DB15 5.56 16" Blk 15" CO M-Lok Rail 1-10Rd
New
UPC 810035755932
$522.16 Allied Arms ★★★★★ (310)
DB15 5.56 NATO 16'' BBL (1)10RD MAG BLACK CO COMPLIANT
New
UPC 810035755932 Free Shipping > $700
$523.36 Safe Haven Defense
Diamondback DB15 5.56 NATO 16" AR Rifle 30RD MLOK
New
UPC 810035754799
$524.99 Good 4 Guns ★★★★★ (276)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 Free Shipping $15 Off Orders Over $75 Code CALIBERKING
$526.99 Brickhouse Firearms
Diamondback DB15 5.56 Rifle - Semi-Auto AR with 16" Barrel
New
UPC 810035754560
$526.99 Good 4 Guns ★★★★★ (276)
Diamondback DB15 AR Rifle - Black | 5.56NATO | 16" Barrel | 15" M-LOK Rail | A2 Flash Hider
New
UPC 810035755406
$526.99 Precision Gunworks
DB15 5.56 NATO 16'' BBL (1)10RD MAG BLACK CO COMPLIANT
New
UPC 810035755932 Shipping $20
$527.99 Custom Creatives Group ★★★★★ (24)
Diamondback Firearms DB15 - Semi-Automatic Modern Sporting Rifle, .223 Remington/5.56 NATO
New
UPC 810035755406
$527.99 Black Bayou Armory ★★★★★ (83)
Diamondback DB15 Rifle 5.56 NATO 10rd Mag 16" 1/2x28 Threaded Barrel Black
New
UPC 810035755925 CC Fee 3%
$528.99 Cornerstone Arms ★★★★★ (373)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406
$529.00 Highland Arms ★★★★★ (49)
Diamondback DB15 Rifle 5.56 NATO 10rd Mag 16" 1/2x28 Threaded Barrel Black
New
UPC 810035755925 CC Fee 6%
$529.42 All Things Firearm ★★★★★ (3)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406
$529.91 Black Bayou Armory ★★★★★ (83)
Diamondback DB1790K005 DB15 *CA Compliant 5.56 NATO 10+1 16" Black Nitride Barrel, Black Hardcoat Anodize Aluminum Receiver w/Picatinny Rail, M-LOK Handguard, Magpul MOE Polymer Brace & Magpul Black G
New
UPC 810035755925 Free Shipping
$529.99 Cummings Family Firearms ★★★★★ (52)
Diamondback DB15 5.56 NATO AR Rifle 16" MLOK 30RD
New
UPC 810035755468
$531.99 Good 4 Guns ★★★★★ (276)
Diamondback DB15 AR Rifle 5.56 NATO 16" MLOK 30RD
New
UPC 810035755451
$531.99 Good 4 Guns ★★★★★ (276)
Diamondback DB1799K005 DB15 *CO Compliant 5.56 NATO 10+1 16" Black Nitride Barrel, Black Anodized Aluminum Receiver w/Picatinny Rail, M-LOK Handguard, Black Synthetic Stock
New
UPC 810035755932
$532.40 Vital Defense ★★★★★ (14)
Diamondback DB1799K005 DB15 *CO Compliant 5.56 NATO 10+1 16" Black Nitride Barrel, Black Anodized Aluminum Receiver w/Picatinny Rail, M-LOK Handguard, Black Synthetic Stock
New
UPC 810035755932
$532.40 Pickett's Mill Armory ★★★★★ (26)
DB15 5.56 NATO 16'' BBL (1)10RD MAG BLACK CO COMPLIANT
New
UPC 810035755932 Free Shipping
$532.79 Timber Hole Outdoors ★★★★★ (5)
DB15 5.56 NATO 16'' BBL (1)10RD MAG BLACK CO COMPLIANT
New
UPC 810035755932 $5 Off - Use Code CALIBERKING
$532.91 Gun Place ★★★★★ (206)
DIAMONDBACK FIREARMS DB15 5.56 BLK 16" M-LOK 15"
New
UPC 810035755406 Shipping $18
$533.31 Blackbox Ballistics ★★★★★ (2)
Diamondback Carbon DB15 Rifle 5.56 Nato 16 in. Black 15 in. M-lok 30 rd.
New
UPC 810035755406
$533.31 Tungsten Creek Tactical
Diamondback DB1717K005 DB15 5.56x45mm NATO 30+1 16", Black, Magpul Carbine Stock & MOE Grip, 15" M-Lok Handgaurd
New
UPC 810035755406 Shipping $11
$533.49 Selway Armory ★★★★★ (186)
DIAMONDBACK DB15 - The Diamondback DB15 features a medium tapered, threaded barrel with an A2 flash hider muzzle device; A3 flattop forged 7075 T-6 aluminum T-Marked upper and a DB15 carbon lower; 6-position Mil-Spec buttstock; A2 style polymer grip and 12" M-LOK handguard...
New
UPC 810035754348 Shipping $20
$533.99 Guns.com ★★★★★ (38,455)

5.56x45mm Diamondback Guns Price Graph

Today's 5.56x45mm Diamondback Guns average is $499.92, 7% below the 180-day average of $538.51. Over the last 180 days, the average peaked at $670.32 on April 15, 2026 and bottomed at $495.55 on August 24, 2026.

Daily Deals Email

Products at their 90-day low price.

Unsubscribe anytime with one click.

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