---
title: "4-Slot Rail Cover"
subtitle: "Low-Profile M-LOK Rail Cover for Enhanced Grip"
sku: "810186050191"
price: 18.99
priceCurrency: USD
availability: InStock
url: https://leftsidearmory.com/shop/4-slot-rail-cover/
category: "Grip"
updated: 2026-08-28T20:11:48.606Z
---

# 4-Slot Rail Cover

**Low-Profile M-LOK Rail Cover for Enhanced Grip**

When you're gripping a bare M-LOK rail during extended range sessions, the sharp edges and gaps can dig into your support hand, affecting your hold and concentration. This lightweight rail cover transforms those uncomfortable surfaces into a smooth, textured grip that keeps you focused on accuracy instead of hand fatigue.

## At a glance

| | |
|---|---|
| Price | $18.99 |
| Availability | In stock |
| SKU | 810186050191 |
| Category | Grip (https://leftsidearmory.com/shop/grip/) |
| Product page | https://leftsidearmory.com/shop/4-slot-rail-cover/ |

## Specifications

| Spec | Value |
|---|---|
| Material | Nylon 12 |
| Mount Type | M-LOK |
| Weight | 12 g |
| Length | 5.43 inches |
| Width | 1 inch |
| Height | 0.23 inches |

## Buying

- Order online: https://leftsidearmory.com/shop/4-slot-rail-cover/
- Shipping — Standard: $9.95, free on orders over $20.00, est. 5 days transit
- Shipping — Priority: $15.00, est. 2 days transit
- Returns: within 30 days of purchase, by mail, in original packaging; customer pays return shipping.
- Questions: hello@leftsidearmory.com

---

Left Side Armory — American-made outdoor accessories and AR-15 components built in Michigan. Lifetime warranty.
Full catalog index: https://leftsidearmory.com/llms.txt