Daniel Defense AR-15/M16 DDM4 Lite Rail 15"
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Daniel Defense
Overview
The Daniel Defense DDM4 Lite Rail 15" is a robust aluminum handguard designed for the AR-15 platform, providing a mounting interface with Picatinny sections for versatile accessory attachment. At 15.2 inches in length, it offers ample real estate for mounting lights, grips, and other tactical accessories while maintaining a lightweight profile. This handguard is commonly found in builds utilizing a mid-length gas system and chambered in 5.56 NATO, making it a reliable choice for those looking to enhance their firearm's functionality.
Specifications
Daniel Defense AR-15/M16 DDM4 Lite Rail 15"
August 2026 on GunPartPicker
Daniel Defense AR-15/M16 DDM4 Lite Rail 15" ranked #86 of the 243 handguards builders added on GunPartPicker in August 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #106 of the 678 handguards builders have added. Builds with this handguard are mostly chambered in 5.56 NATO (67%, then .223 Remington 11%), split between carbine-length (33%) and mid-length (33%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today all 6 retailers we track have it in stock. It dipped to $392.70 at Brownells for a stretch in August 2026, well under its usual $462 to $500, so sales do come around. Buying today, the lowest price is $459.99 at Ammunition Depot, above August's low of $392.70, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
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Frequently Built With
The part most often added in each category by the 14 builds that include this one
Wilson Combat AR-15 Billet Upper Receiver
Bravo Company M16 Bolt Carrier Group Black
Breek Arms AR-15 Warhammer MOD2 Ambidextrous Charging Handle Black
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
WMD Guns AR-15 Gas Tube Nitromet Mid-Length
Yankee Hill Machine Co. AR-15 16.5" Threaded Fluted Barrel 1-8 Twist
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 3 →Builds in the community that include the Daniel Defense Ar-15/m16 Ddm4 Lite Rail 15"
| Build | Parts | Total |
|---|---|---|
 | 12 | $3183.57 |
 | 25 | $2279.41 |
 | 18 | $4450.46 |
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