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Magpul
Overview
The Magpul AR-15 CTR Stock is a collapsible stock designed for Mil-Spec buffer tubes, crafted from durable polymer to withstand the rigors of use. Its adjustable length allows for a customizable fit, enhancing comfort and stability during shooting. This stock is often found on builds featuring a mid-length gas system in 5.56 NATO caliber, making it a versatile choice for various applications.
Magpul AR-15 CTR Stock Collapsible Mil-Spec Black
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Magpul AR-15 CTR Stock Collapsible Mil-Spec Black was the fourth most added stock on GunPartPicker in August 2026, behind the Magpul DT Carbine Stock - Mil-Spec - FDE - MAG1377-FDE, with about 4% of all stocks and braces added to builds. That's its 3rd straight month at #4. Builds with this stock are mostly chambered in 5.56 NATO (66%), split between mid-length (54%) and carbine-length (33%) gas systems, and mostly AR-15 (83%, then AR-10 17%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 9 of the 11 retailers we track have it in stock. It dipped to $47.99 at KY Gun Company for a stretch in August 2026, well under its usual $54.51 to $61.70, so sales do come around. Buying today, the lowest price is $54.51 at KY Gun Company, above August's low of $47.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every stock & brace by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Stock Popularity Report →The part most often added in each category by the 477 builds that include this one
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Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Bravo Company M16 Bolt Carrier Group Black
Magpul MOE K2 Grip Polymer Gray
Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Magpul Ar-15 Ctr Stock Collapsible Mil-Spec Blk
| Build | Parts | Total |
|---|---|---|
 | 16 | $4558.31 |
 | 11 | $5425.89 |
 | 20 | $969.88 |
 | 26 | $3166.06 |
 | 30 | $3616.59 |
 | 24 | $6502.18 |
 | 11 | $1884.57 |
 | 24 | $1172.21 |
 | 9 | $2852.83 |
 | 34 | $4774.83 |
 | 24 | $517.15 |
 | 13 | $1979.19 |
4 global ratings
Top reviews
Magpul CTR carbine stock has comfortable cheek weld geometry. Locks at each position positively on a milspec tube. QD socket on both sides. Polymer is dense and durable - holds up to drops and abuse without cracking.
Magpul CTR carbine stock has the integrated QD socket that holds tight to a sling under load. Stock locks at each position with no wobble on the milspec tube. Cheek weld is comfortable. Black polymer matches Magpul black parts.
cheek weld is comfortable
good stock. release lever is stiff at first
