Compared on builder picks, today's prices and specs.
Our pick: the builders' favorite

Builders pick it 18 to 1 over the SB Tactical Adjustable 5 Position Arm.
$33.99at KY Gun Company, in stock
Builders pick the Magpul MOE Stock Collapsible 18 to 1 over the SB Tactical Adjustable 5 Position Arm. It is in 15.3% of GunPartPicker builds that have a stock, against 0.9% for the SB Tactical Adjustable 5 Position Arm. It is also the cheaper one today: $33.99 at KY Gun Company, $66 less than the SB Tactical Adjustable 5 Position Arm.
11 stores we track have the Magpul MOE Stock Collapsible in stock. Builders paid a median $30.99 for it when they added it, against $99.99 for the SB Tactical Adjustable 5 Position Arm. It is most often built with the Geissele Automatics SSA-E X and the Bravo Company Bolt Carrier Group.
Builders pick the Magpul MOE Stock Collapsible 17.7 to 1.
Shares come from GunPartPicker's build data: real parts lists people put together while planning a purchase, not sales. Slot share is the share of builds with a stock & brace that chose this one. Median paid is the price shown when builders picked it, not today's price; the table below has today's prices.
| Spec | ![]() | ![]() |
|---|---|---|
| Lowest in stock | $33.99KY Gun Company | $99.99Brownells |
| Stores in stock | 11 | 7 |
| Stock Type | Collapsible | Collapsible |
| Tube Spec | Mil-Spec | Not listed |
| Color | Black | Black |
| Material | Polymer | Not listed |
| Weight | 8 | Not listed |
| Actions |
Every store we track for each part, cheapest in stock first. Prices are checked through the day.