WMD Guns

WMD Guns NIB-X AR-15 Bolt Catch

Wmd Guns NiB-X Ar-15 Bolt Catch - Bolt Catch for AR-15 - view 1
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WMD Guns

Overview

The WMD Guns NiB-X AR-15 Bolt Catch features a Nickel Boron finish that enhances durability and provides smooth operation, making it easier to engage and release your bolt during reloads. This finish also helps reduce friction and wear, which is particularly beneficial for high-use builds. You’ll often find this bolt catch in mid-length gas system builds chambered in 5.56 NATO, where reliability and performance are key.

Specifications

MPNNIBXBLTC
FinishNickel Boron

Available Merchants(2)

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Primary Arms
Free shipping over $99
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$9.00
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Optics Planet
Free shipping over $49
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Out of Stock
$9.99
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October 2026 on GunPartPicker

WMD Guns NIB-X AR-15 Bolt Catch ranked #23 of the 75 bolt catches builders added on GunPartPicker in October 2026. Builders have added it to their builds on GunPartPicker. Since April 2026, it ranks #31 of the 118 bolt catches builders have added. Builds with this bolt catch are mostly chambered in 5.56 NATO (65%, then .223 Wylde 17%), split between mid-length (33%) and carbine-length (30%) gas systems, and mostly AR-15 (90%).

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today only Primary Arms has it in stock. Prices barely moved in October 2026, holding around $9, with no real sale all month. Buying today, the lowest price is $9 at Primary Arms, which matches the best price we saw in October.

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Frequently Built With

The part most often added in each category by the builds that include this one

Rise Armament AR-15 Magazine Release Button - Rise Red

Rise Armament AR-15 Magazine Release Button - Rise Red

Magazine Release$8in 19% of them
Aero Precision M4E1 Stripped AR-15 Lower Receiver - FDE Cerakote

Aero Precision M4E1 Stripped AR-15 Lower Receiver - FDE Cerakote

Lower Receiver$143 · out of stockin 12% of them
Strike Industries AR-15 Ultra Light Pivot / Takedown Pins - FDE

Strike Industries AR-15 Ultra Light Pivot / Takedown Pins - FDE

Takedown Pin$16in 25% of them
Magpul MOE-SL Grip Polymer Dark Earth

Magpul MOE-SL Grip Polymer Dark Earth

Pistol Grip$16in 15% of them
Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Geissele Automatics AR-15 SSA-E X Lightning Bow Trigger

Trigger$335in 8% of them
Phase 5 Tactical 90 Degree Ambi Safety Selector - Red

Phase 5 Tactical 90 Degree Ambi Safety Selector - Red

Safety$50in 10% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

90.2%
AR-1590.2%
AR-106.6%
AR-93.3%

Caliber

64.6%
5.56 NATO64.6%
.223 Wylde16.7%
300 Blackout10.4%
9mm4.2%
.223 Remington2.1%
Other2.1%

Gas System

33.3%
Mid-Length33.3%
Carbine30%
Pistol20%
Rifle16.7%

Builds Featuring This Part

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Builds in the community that include the Wmd Guns NiB-X Ar-15 Bolt Catch

BuildPartsTotal
Carbine 16" 5.56 build
Carbine 16" 5.56		37$6618.11
Second 5.56 build build
Second 5.56 build		28$5382.13
aero precision 8" 5.56 build
aero precision 8" 5.56		29$3766.81
16.5" 5.56 build
16.5" 5.56		27$2139.46
10.5" 5.56 build
10.5" 5.56		30$2943.65
Spike's Tactical 10.5" 5.56 build
Spike's Tactical 10.5" 5.56		26$2070.92
aero precision 10.5" build build
aero precision 10.5" build		23$1483.14

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