NBS Upper Tension Screw With Nylon Tip 1/4"-28 Thread

Name: NBS Upper Tension Screw With Nylon Tip 1/4"-28 Thread
Brand: NBS

NBS · Lower Parts

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Best price

$1.99at AR15Discounts

checked Oct 31, 2026

Buy at AR15Discounts

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Where to buy

Store	Price	Availability	Buy	Add to build
AR15Discounts Best price	$1.99checked Oct 31, 2026	Check store	Buy at AR15Discounts
Dirty Bird	$1.99checked Oct 31, 2026	Check store	Buy at Dirty Bird

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Oct 28, 2026.

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Store	Latest	Lowest	Highest
AR15Discounts	$1.99	$1.99	$1.99
Dirty Bird	$1.99	$1.99	$1.99

Since Oct 28, 2026.

About this part

The NBS Upper Tension Screw With Nylon Tip 1/4"-28 Thread is an AR-15 lower part from NBS. It's sold by 2 stores, all at $1.99.

Specifications

Manufacturer: NBS
Platform: AR-15
Material: Polymer

From the manufacturer

This Nylon Tipped Tension Set Screw allows users to remove "slop" and fine tune the fit of their upper with their lower receiver. Achieve a tight fit with any standard AR-15 upper receiver by inserting the screw into the grip tang of any Lower Receiver that comes equipped with a vertical 1/4" - 28 threaded hole and tightening against the upper receiver until there is no wobble between the 2 parts. Alloy Steel, Nylon-tip Set Screw 1/4"-28 Thread, 1/2" Long