Daniel Defense’s rails are designed and manufactured to meet the most demanding requirements of the battlefield. Using a super strong, proprietary high-temperature alloy, the barrels feature an uninterrupted top rail made for mounting iron sights or optics. The extremely smooth upper receiver is optimized for use with scopes as well as red dot optics. The Daniel Defense rail system is best of breed, offering the least amount of rail space intrusion, increased structural integrity, superior weight savings and perfect attachment points for the MLOK accessories that shooters want most. These rails are available in various lengths and configurations, so you can choose exactly how you want your weapon to function.

Showing 1–9 of 32 results

DDM4® RAIL 10.0 (MID-LENGTH)

$415.00
Product Weight 10.2 oz
Rail Length 10.06"
Width 1.90"
Height 2.16"
Inside Diameter 1.08"
Barrel Nut Steel (For Patented Bolt-Up System)
Gas System Mid-length
Free Float Yes
Continuous Upper Rail Yes
Integrated Sling Swivel Attachment Point Yes
Manufacturer Daniel Arms

DDM4® RAIL 12.0 (MID-LENGTH)

$449.00
 
Product Weight 12.4 oz
Rail Length 12.43"
Width 1.90"
Height 2.16"
Inside Diameter 1.08"
Barrel Nut Steel (For Patented Bolt-Up System)
Gas System Mid-length
Free Float Yes
Continuous Upper Rail Yes
Integrated Sling Swivel Attachment Point Yes
Manufacturer Daniel Arms

DDM4® RAIL 15.0 (RIFLE LENGTH)

$449.00
 
Product Weight 14.8 oz
Rail Length 15.20"
Width 1.90"
Height 2.16"
Inside Diameter 1.08"
Barrel Nut Steel (For Patented Bolt-Up System)
Gas System Rifle Extended
Free Float Yes
Continuous Upper Rail Yes
Integrated Sling Swivel Attachment Point Yes
Manufacturer Daniel Arms

DDM4® RAIL 9.0 (MID-LENGTH)

$415.00
 
Product Weight 9.5 oz
Rail Length 9.235"
Width 1.90"
Height 2.16"
Inside Diameter 1.08"
Barrel Nut Steel (For Patented Bolt-Up System)
Gas System Mid-length
Free Float Yes
Continuous Upper Rail Yes
Integrated Sling Swivel Attachment Point Yes
Manufacturer Daniel Arms

M4A1 FSP RAIL INTERFACE SYSTEM RIS II (BLACK)

$486.00
Product Weight 17.1 oz
Rail Length 12.25"
Width 2.23"
Height 2.25"
Inside Diameter 1.15"
Barrel Nut Steel (For Patented Bolt-Up System)
Gas System Carbine
Free Float Yes
Continuous Upper Rail Yes
Integrated Sling Swivel Attachment Point No
Manufacturer Daniel Arms

M4A1 FSP RAIL INTERFACE SYSTEM RIS II (FDE)

$486.00
 
Product Weight 17.1 oz
Rail Length 12.25"
Width 2.23"
Height 2.25"
Inside Diameter 1.15"
Barrel Nut Steel (For Patented Bolt-Up System)
Gas System Carbine
Free Float Yes
Continuous Upper Rail Yes
Integrated Sling Swivel Attachment Point No
Manufacturer Daniel Arms

M4A1 RAIL INTERFACE SYSTEM II RIS II (FDE)

$486.00
 
Product Weight 17.7 oz
Rail Length 12.25"
Width 2.23"
Height 2.25"
Inside Diameter 1.15"
Barrel Nut Steel (For Patented Bolt-Up System)
Gas System Carbine
Free Float Yes
Continuous Upper Rail Yes
Integrated Sling Swivel Attachment Point No
Manufacturer Daniel Arms