Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
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Daniel Defense
Overview
The Daniel Defense Collapsible Mil-Spec Buttstock is designed to provide adjustable length of pull for a more customized shooting experience. Its Mil-Spec tube compatibility ensures a secure fit with standard AR-15 lower receivers, allowing for reliable performance and ease of use. This buttstock is commonly found in builds featuring a mid-length gas system and chambered in 5.56 NATO, making it a fitting choice for those looking to enhance their firearm's versatility.
Specifications
Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
Available Merchants(8)
Prices checked
Price Alert
October 2026 so far on GunPartPicker
Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011 is the second most added stock on GunPartPicker so far in October 2026, behind the Magpul AR-15 MOE Stock Collapsible Mil-Spec Black, with about 10% of all stocks and braces added to builds. That's its 6th straight month at #2. Builds with this stock are mostly chambered in 5.56 NATO (73%, then .223 Wylde 8%), split between mid-length (54%) and carbine-length (27%) gas systems, and mostly AR-15 (91%).
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, but today 3 of the 8 retailers we track have it in stock. Prices barely moved in September 2026, holding around $84, so there haven't been real sales lately. Buying today, the lowest price is $88 at Brownells, above September's low of $82, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by thousands of builds that include this one
Aero Precision M4E1 Complete Lower Receiver W/MOE SL Grip & SL-S Carbine Stock
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
Radian Raptor Charging Handle & Talon Safety Selector Combo - OD Green
Bravo Company M16 Bolt Carrier Group Black
EOTECH 3x30.5mm X 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with 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 61 →Builds in the community that include the Daniel Defense Collapsible Mil-Spec Buttstock, Brown - 21-091-04179-011
| Build | Parts | Total |
|---|---|---|
| Ar-15 | 21 | $2253.35 |
 | 18 | $1218.29 |
 | 22 | $2246.83 |
 | 24 | $3261.48 |
 | 16 | $1837.88 |
 | 31 | $7674.30 |
| 27 | $4172.24 |
 | 23 | $2055.83 |
 | 15 | $4078.36 |
| 28 | $2071.45 |
 | 14 | $4939.83 |
 | 22 | $1704.94 |
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