AR-15s are incredibly popular, and a key part of their customization is the upper receiver. Many builders opt for uppers without forward assist, a seemingly small detail with significant implications for reliability, function, and overall rifle design. This article explores AR uppers without forward assists, examining their advantages and disadvantages to help you determine if this feature (or lack thereof) is right for your build.
Understanding the Forward Assist
Before diving into the pros and cons of omitting the forward assist, let's establish its purpose. The forward assist is a small lever located on the right side of the upper receiver. Its primary function is to help chamber a round if the bolt carrier group (BCG) fails to fully seat a cartridge during the charging process. Essentially, it gives the BCG a little extra push to overcome any minor obstructions.
Many shooters consider it a crucial safety feature. However, a well-maintained AR-15 with properly lubricated parts rarely requires it. The argument against it often centers around its potential for contributing to malfunctions, rather than preventing them.
Why Choose an AR Upper Without Forward Assist?
Several compelling reasons exist for choosing an AR upper receiver without a forward assist.
1. Enhanced Reliability and Simplicity
Many experienced shooters and gunsmiths argue that the forward assist is more likely to cause malfunctions than prevent them. Forcing the BCG closed can damage parts, especially if already slightly misaligned or improperly lubricated. Removing the forward assist eliminates this potential point of failure, leading to a more reliable system. A simpler design typically translates to less that can go wrong.
2. Weight Reduction
The forward assist, though small, adds weight. For those focused on reducing the overall weight of their AR-15, omitting it is a worthwhile consideration. Even a small weight reduction can significantly impact a rifle's handling and maneuverability, particularly during extended use.
3. Aesthetic Preferences
Some shooters simply prefer the cleaner, more minimalist look of an upper receiver without the forward assist. This is purely aesthetic and a matter of personal preference. The sleek profile aligns with the build preferences of many modern AR builders.
4. Cost Savings
Uppers without forward assists are often slightly cheaper than their counterparts. This is because they involve less machining and fewer parts. While the savings might be modest, it can add up, especially when building multiple rifles.
Disadvantages of an AR Upper Without Forward Assist
While the benefits are clear for some, opting for a forward assist-less upper does come with drawbacks.
1. Increased Difficulty in Chambering Rounds
The most significant disadvantage is the potential increased difficulty in chambering a round. If the BCG fails to fully seat a cartridge, you will need to manually correct the issue. This requires manipulation of the charging handle and sometimes may require field stripping to clear the malfunction.
2. Reduced Margin for Error
Without the forward assist, there is less room for error when assembling or maintaining the rifle. Improper lubrication or a slightly misaligned BCG can result in more frequent failure to chamber.
3. Less Forgiveness for Poor Maintenance
Regular cleaning and lubrication are crucial for reliable operation. A forward assist can compensate for minor lubrication issues, but without it, neglecting maintenance can more easily lead to malfunctions.
Case Study: Comparing Two Builds
Let's consider two identical AR-15 builds, the only difference being the presence or absence of a forward assist.
| Feature | Build A (With Forward Assist) | Build B (Without Forward Assist) |
|---|---|---|
| Forward Assist | Present | Absent |
| Weight | Slightly Heavier | Slightly Lighter |
| Cost | Slightly More Expensive | Slightly Less Expensive |
| Reliability | Potentially Higher (but dependent on maintenance and user skill) | Potentially Lower (but dependent on maintenance and user skill) |
| Maintenance | May be slightly less critical | More critical |
Important Note: Reliability in both scenarios heavily depends on proper maintenance, high-quality components, and proper technique.
Conclusion: Making the Right Choice
The decision of whether or not to choose an AR upper without a forward assist is a personal one. Experienced shooters with a deep understanding of AR-15 mechanics and a commitment to regular maintenance might find the benefits outweigh the risks. However, for novice shooters or those prioritizing ease of use, the forward assist might be a worthwhile feature to retain. Carefully consider your skill level, maintenance habits, and intended use of the rifle before making your decision. Remember, a well-maintained rifle, regardless of whether it includes a forward assist, will generally function reliably.